{"id":27564,"date":"2026-10-17T11:04:39","date_gmt":"2026-10-17T11:04:39","guid":{"rendered":"https:\/\/blog.oratrics.com\/?p=27564"},"modified":"2026-10-17T11:36:26","modified_gmt":"2026-10-17T11:36:26","slug":"mental-maths-for-class-12-2","status":"publish","type":"post","link":"https:\/\/oratrics.com\/blogs\/math-explorer-program\/mental-maths-for-class-12-2\/","title":{"rendered":"Mental Maths for Class 12: Complete Guide for Grade 12 Students"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"27564\" class=\"elementor elementor-27564\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1af605c elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"1af605c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-486afa4\" data-id=\"486afa4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-576f7b0\" data-id=\"576f7b0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b050d2 elementor-widget elementor-widget-heading\" data-id=\"3b050d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Mental Maths for Class 12: Complete Guide for Grade 12 Students\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68e1d06 elementor-widget elementor-widget-text-editor\" data-id=\"68e1d06\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Class 12 asks you to do two hard things at once. You need to understand tougher concepts, and you need to finish long calculations before the paper runs out of time. Most students work on the first and forget the second. That is where mental maths for class 12 earns its place. When you can multiply, divide, handle fractions, and estimate answers in your head, you save minutes in every paper and make fewer silly mistakes. This guide gives you the basic facts to know, eleven practical tricks with worked examples, a practice set, a simple study plan, and honest advice on learning online.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9811c5 elementor-widget elementor-widget-image\" data-id=\"a9811c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/blog.oratrics.com\/wp-content\/uploads\/2026\/10\/331dd276-402a-4362-a719-e26e04dc7e10-1024x576.webp\" class=\"attachment-large size-large wp-image-27595\" alt=\"Mental maths for Class 12 students to improve calculation speed and accuracy.\" srcset=\"https:\/\/blog.oratrics.com\/wp-content\/uploads\/2026\/10\/331dd276-402a-4362-a719-e26e04dc7e10-1024x576.webp 1024w, https:\/\/blog.oratrics.com\/wp-content\/uploads\/2026\/10\/331dd276-402a-4362-a719-e26e04dc7e10-300x169.webp 300w, https:\/\/blog.oratrics.com\/wp-content\/uploads\/2026\/10\/331dd276-402a-4362-a719-e26e04dc7e10-768x432.webp 768w, https:\/\/blog.oratrics.com\/wp-content\/uploads\/2026\/10\/331dd276-402a-4362-a719-e26e04dc7e10-1536x864.webp 1536w, https:\/\/blog.oratrics.com\/wp-content\/uploads\/2026\/10\/331dd276-402a-4362-a719-e26e04dc7e10.webp 1672w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-52d4d5a\" data-id=\"52d4d5a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-62d2777 elementor-widget elementor-widget-html\" data-id=\"62d2777\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\r\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Poppins:wght@400;500;600;700&display=swap\" rel=\"stylesheet\">\r\n\r\n<div class=\"toc-wrapper\">\r\n    \r\n    \r\n    <div class=\"custom-toc\" id=\"custom-toc\">\r\n        <div class=\"toc-title\">\r\n            \u2630 Table of Contents\r\n        <\/div>\r\n        <ul class=\"toc-list\" id=\"toc-list\"><\/ul>\r\n    <\/div>\r\n    \r\n<\/div>\r\n\r\n<style>\r\n\/* Parent Fixed Wrapper holding both components together *\/\r\n.toc-wrapper {\r\n    position: fixed;\r\n    top: 150px; 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\r\n        overflow-y: visible;\r\n    }\r\n\r\n    .custom-toc .toc-title {\r\n        font-size: 25px;\r\n    }\r\n\r\n    .custom-toc .toc-list a {\r\n        font-size: 14px;\r\n    }\r\n}\r\n<\/style>\r\n\r\n<script>\r\ndocument.addEventListener(\"DOMContentLoaded\", function () {\r\n    const tocList = document.getElementById(\"toc-list\");\r\n    const h1 = document.querySelector(\"h1\");\r\n    const h2s = document.querySelectorAll(\"h2\");\r\n\r\n    function createId(text) {\r\n        return text.toLowerCase().replace(\/[^a-z0-9]+\/g, '-');\r\n    }\r\n\r\n    if (h1) {\r\n        if (!h1.id) {\r\n            h1.id = createId(h1.innerText);\r\n        }\r\n        const li = document.createElement(\"li\");\r\n        li.innerHTML = `<a href=\"#${h1.id}\">${h1.innerText}<\/a>`;\r\n        tocList.appendChild(li);\r\n    }\r\n\r\n    h2s.forEach(h2 => {\r\n        if (!h2.id) {\r\n            h2.id = createId(h2.innerText);\r\n        }\r\n        const li = document.createElement(\"li\");\r\n        li.classList.add(\"toc-h2\");\r\n        li.innerHTML = `<a href=\"#${h2.id}\">${h2.innerText}<\/a>`;\r\n        tocList.appendChild(li);\r\n    });\r\n});\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-eec78a7 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"eec78a7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-d023f01\" data-id=\"d023f01\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-43c4685\" data-id=\"43c4685\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-844b4b3 elementor-widget elementor-widget-heading\" data-id=\"844b4b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Mental Maths for Class 12 Matters<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32426ec elementor-widget elementor-widget-text-editor\" data-id=\"32426ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Board exams, JEE Main, NEET, CUET, and most other entrance tests are about both knowledge and speed. Calculators are not allowed in most board exams or in JEE Main and NEET, so every multiplication and division is on you. Always check the latest rules for your own exam.<\/span><\/p><p><span style=\"font-weight: 400;\">The same arithmetic keeps appearing in different subjects.<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Maths: determinants, matrices, probability fractions, limits, and definite integrals all involve repeated small calculations.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Physics: powers of ten, unit conversions, and formula substitution in electricity, optics, and modern physics.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Chemistry: mole concept, molarity, and first order reaction problems that use logarithm values.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Commerce subjects: percentage change, ratios, averages, and quick checks of totals in accountancy and economics.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">There is one more benefit. Mental maths trains your sense of size. If an answer should be around 50 and your calculation says 5000, you stop and check. That habit saves marks.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-31d6c20\" data-id=\"31d6c20\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e040e03 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"e040e03\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-b2a5840\" data-id=\"b2a5840\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-b1ab664\" data-id=\"b1ab664\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d6ab6fb elementor-widget elementor-widget-heading\" data-id=\"d6ab6fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Basic Facts to Know by Heart\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4803005 elementor-widget elementor-widget-text-editor\" data-id=\"4803005\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Tricks sit on top of a few facts that you should know without thinking.<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Squares from 1 to 30 and cubes from 1 to 15.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fractions and decimals: 1\/8 is 0.125, 3\/8 is 0.375, 5\/8 is 0.625, 1\/3 is about 0.333, 1\/6 is about 0.167.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Square roots: \u221a2 is about 1.414, \u221a3 is about 1.732, \u221a5 is about 2.236.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Logarithms: log 2 is 0.3010, log 3 is 0.4771, log 7 is 0.8451. Also, ln 2 is about 0.693 and ln 10 is about 2.303.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Useful constants: pi is about 3.14, the speed of light is 3 \u00d7 10\u2078 metres per second, and g is about 9.8 or 10 metres per second squared.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Atomic masses: H 1, C 12, N 14, O 16, Na 23, Cl 35.5.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Standard trigonometric values for 0, 30, 45, 60, and 90 degrees.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-2662d51\" data-id=\"2662d51\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cb0065c elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"cb0065c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-fbf8362\" data-id=\"fbf8362\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-50181c8\" data-id=\"50181c8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5c7d67a elementor-widget elementor-widget-heading\" data-id=\"5c7d67a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mental Maths Tricks for Class 12 Students<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0820b0 elementor-widget elementor-widget-text-editor\" data-id=\"d0820b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Each trick has a short rule and one worked example. Try it on paper first, then close the notebook and repeat it in your head. Learn two or three at a time. Eleven in one evening will not stay with you.<\/span><\/p><h3><b>1. Anchor on a Friendly Number<\/b><\/h3><p><span style=\"font-weight: 400;\">If a number sits close to a round one, work with the round number and fix the gap.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: 49 \u00d7 12. Think 50 \u00d7 12 = 600, then take away one 12. The answer is 588.<\/span><\/p><h3><b>2. Double One Number and Halve the Other<\/b><\/h3><p><span style=\"font-weight: 400;\">This keeps the product the same while making the numbers easier.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: 35 \u00d7 16. Double 35 to get 70 and halve 16 to get 8. Then 70 \u00d7 8 = 560.<\/span><\/p><h3><b>3. Turn Decimals and Percentages into Fractions<\/b><\/h3><p><span style=\"font-weight: 400;\">Many exam numbers are friendly fractions in disguise. 12.5% is 1\/8, 37.5% is 3\/8, and 62.5% is 5\/8.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: 37.5% of 640. Since 37.5% is 3\/8, find one eighth of 640, which is 80, then multiply by 3 to get 240.<\/span><\/p><h3><b>4. Add Fractions Using Quick Common Denominators<\/b><\/h3><p><span style=\"font-weight: 400;\">This helps in probability and ratio questions.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: 2\/3 + 1\/4. Use 12 as the common denominator. Then 8\/12 + 3\/12 = 11\/12.<\/span><\/p><h3><b>5. Handle 2 by 2 Determinants Quickly<\/b><\/h3><p><span style=\"font-weight: 400;\">Multiply the main diagonal, multiply the other diagonal, and subtract.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: the matrix with rows (4, 3) and (2, 5). The determinant is 4 \u00d7 5 minus 3 \u00d7 2, which is 20 minus 6 = 14.<\/span><\/p><h3><b>6. Square Any Number with (a + b)\u00b2<\/b><\/h3><p><span style=\"font-weight: 400;\">Break the number into a round part and a small part.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: 62\u00b2. Write it as (60 + 2)\u00b2. That gives 3600 + 240 + 4 = 3844.<\/span><\/p><h3><b>7. Work with Powers of Ten Separately<\/b><\/h3><p><span style=\"font-weight: 400;\">Deal with the digits first and the powers of ten after.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: sunlight travels about 1.5 \u00d7 10\u00b9\u00b9 metres from the Sun to the Earth. At 3 \u00d7 10\u2078 metres per second, the time taken is (1.5 \u00f7 3) \u00d7 (10\u00b9\u00b9 \u00f7 10\u2078). That is 0.5 \u00d7 10\u00b3 = 500 seconds.<\/span><\/p><h3><b>8. Find Percentage Change as Gap Divided by Original<\/b><\/h3><p><span style=\"font-weight: 400;\">Example: a price rises from 80 to 100. The gap is 20, and 20 divided by 80 is one quarter. So the increase is 25%.<\/span><\/p><h3><b>9. Use Logarithm Values You Already Know<\/b><\/h3><p><span style=\"font-weight: 400;\">In chemistry, ln 2 is about 0.693, and it is also 2.303 \u00d7 log 2, since 2.303 \u00d7 0.3010 comes to about 0.693. For a first order reaction, half life equals 0.693 divided by the rate constant.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: if the rate constant is 0.0693 per minute, the half life is 0.693 \u00f7 0.0693 = 10 minutes.<\/span><\/p><h3><b>10. Estimate Before You Calculate<\/b><\/h3><p><span style=\"font-weight: 400;\">Round the numbers, get a rough answer, and use it to remove options that are far off.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: 7.9 \u00d7 31. Round to 8 \u00d7 31 = 248. The exact answer is 244.9, so the estimate is close.<\/span><\/p><h3><b>11. Check Multiplications with a Digit Sum<\/b><\/h3><p><span style=\"font-weight: 400;\">Reduce each number to a single digit by adding its digits, multiply those digits, and compare with the digit sum of your answer. If they do not match, there is an error.<\/span><\/p><p><span style=\"font-weight: 400;\">Example: check 68 \u00d7 74 = 5032. The digit sum of 68 is 5, and the digit sum of 74 is 2. Then 5 \u00d7 2 = 10, which reduces to 1. The digit sum of 5032 is 10, which also reduces to 1. The answer passes the check. This test can miss some errors, so use it as a quick filter and not as proof.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-ff2529d\" data-id=\"ff2529d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ca71e24 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"ca71e24\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-58b752a\" data-id=\"58b752a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-a6a65b9\" data-id=\"a6a65b9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-07e361e elementor-widget elementor-widget-heading\" data-id=\"07e361e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Practice Questions\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94ba69d elementor-widget elementor-widget-text-editor\" data-id=\"94ba69d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Try each question in your head first. Jot down your answer, then check it against the key below.<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">49 \u00d7 12<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">35 \u00d7 16<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Find 37.5% of 640.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">2\/3 + 1\/4<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Find the determinant of the matrix with rows (4, 3) and (2, 5).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">62\u00b2<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Divide 1.5 \u00d7 10\u00b9\u00b9 by 3 \u00d7 10\u2078.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A price rises from 80 to 100. What is the percentage increase?<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A reaction has a rate constant of 0.0693 per minute. Using half life equals 0.693 divided by the rate constant, find the half life.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Estimate 7.9 \u00d7 31.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use the digit sum check on 68 \u00d7 74 = 5032. Does it pass?<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">98 \u00d7 15<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-8e3866f\" data-id=\"8e3866f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-df630ce elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"df630ce\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-0506b7a\" data-id=\"0506b7a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-adf96d3\" data-id=\"adf96d3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-81d4b85 elementor-widget elementor-widget-heading\" data-id=\"81d4b85\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Answer Key\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38a63df elementor-widget elementor-widget-text-editor\" data-id=\"38a63df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">588 (600 minus 12)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">560 (70 \u00d7 8)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">240 (3\/8 of 640)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">11\/12 (8\/12 + 3\/12)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">14 (20 minus 6)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">3844 (3600 + 240 + 4)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">500 (0.5 \u00d7 10\u00b3)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">25% (gap 20 divided by 80)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">10 minutes (0.693 \u00f7 0.0693)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">About 248 (exact value 244.9)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Yes, both sides reduce to 1<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">1470 (100 \u00d7 15 is 1500, take away 2 \u00d7 15 = 30)<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-0799999\" data-id=\"0799999\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-84fd4d8 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"84fd4d8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-b1fad06\" data-id=\"b1fad06\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-5e76e3b\" data-id=\"5e76e3b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f7ba3ed elementor-widget elementor-widget-heading\" data-id=\"f7ba3ed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mental Maths for Class 12 Online: How to Practise and Learn\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf7b634 elementor-widget elementor-widget-text-editor\" data-id=\"cf7b634\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">You can build this skill online without spending anything. A daily routine of 15 to 20 minutes, a timer, and a notebook for errors will take you a long way.<\/span><\/p><p><span style=\"font-weight: 400;\">Free ways to practise:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Write your own ten question drill each night using the tricks above, and solve it against the clock.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use previous year papers and time yourself on the calculation heavy questions.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Keep an error log. Write down every wrong calculation and the reason, such as a dropped decimal or a rushed subtraction.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pair up with a friend and quiz each other for five minutes over a video call.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">If you want guided learning, there are two main formats. Recorded courses, such as those on course marketplaces like Udemy, let you learn at your own pace, but you get little feedback, so check the syllabus and reviews before buying. Live online classes give you a teacher who can correct your method in real time, usually at a higher cost.<\/span><\/p><p><span style=\"font-weight: 400;\">Online learning has a few common traps. Do not watch videos passively. Pause and solve each example before the teacher does, and keep your phone away while you practise.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-6bc6f3f\" data-id=\"6bc6f3f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cc32276 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"cc32276\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-c759d0d\" data-id=\"c759d0d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-2921b09\" data-id=\"2921b09\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cdb853e elementor-widget elementor-widget-heading\" data-id=\"cdb853e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A 4 Week Practice Plan for Your Exam Year<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1ed46c elementor-widget elementor-widget-text-editor\" data-id=\"f1ed46c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Fifteen to twenty minutes a day beats one long weekend session.<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Week 1: memorise squares, cubes, fraction and decimal pairs, and the log and root values.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Week 2: practise tricks 1 to 4 and 6 until they feel automatic.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Week 3: work on subject specific skills, determinants, powers of ten, percentage change, and half life problems.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Week 4: take a timed mixed set of 20 questions, record your score and time, and review your error log.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">After four weeks, repeat the cycle with harder numbers. Track accuracy as well as speed, because a fast wrong answer earns nothing.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-133570a\" data-id=\"133570a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4c291c3 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"4c291c3\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-0e19e6c\" data-id=\"0e19e6c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-e5befb7\" data-id=\"e5befb7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2114559 elementor-widget elementor-widget-heading\" data-id=\"2114559\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Common Mistakes to Avoid\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-034ab8b elementor-widget elementor-widget-text-editor\" data-id=\"034ab8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Learning tricks without knowing why they work, which causes trouble when the question changes slightly.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Practising only easy questions and avoiding the hard ones.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Chasing speed and ignoring accuracy.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reaching for a calculator in practice sessions.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using a shortcut where it does not fit.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Practising only the week before the exam.<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-1be491c\" data-id=\"1be491c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ccad3a6 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"ccad3a6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-18ed983\" data-id=\"18ed983\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-8541e9e\" data-id=\"8541e9e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8af0e3b elementor-widget elementor-widget-heading\" data-id=\"8af0e3b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe4eb73 elementor-widget elementor-widget-text-editor\" data-id=\"fe4eb73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Mental maths for class 12 is not a magic trick. It is a set of small habits, known facts, and practised methods that save time and cut errors in every subject. Start with the basic facts, add two or three tricks at a time, practise for 15 to 20 minutes a day, and review your mistakes. If you want guided help, compare options carefully, ask for a demo, and pick the mental maths course for class 12 kids that fits your level and schedule. A few focused weeks can make your calculations noticeably faster and calmer.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-8b7201d\" data-id=\"8b7201d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72f9595 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"72f9595\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-bd1f793\" data-id=\"bd1f793\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-248a2df\" data-id=\"248a2df\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8b9e5dc elementor-widget elementor-widget-heading\" data-id=\"8b9e5dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Frequently Asked Questions\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5dcbe42 elementor-widget elementor-widget-accordion\" data-id=\"5dcbe42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9831\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-9831\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What is mental maths for class 12?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9831\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-9831\"><p><span style=\"font-weight: 400;\">It is the skill of doing calculations such as multiplication, fractions, percentages, powers of ten, and logarithm based estimates quickly in your head, so you can solve maths, science, and commerce problems faster and with fewer errors.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9832\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-9832\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Can I learn mental maths for class 12 online?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9832\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-9832\"><p><span style=\"font-weight: 400;\">Yes. You can practise with daily drills, previous year papers, and an error log, and you can also join recorded or live online classes. Choose a format that gives you practice and feedback, not just videos.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9833\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-9833\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Do I need a mental maths course for class 12 kids?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9833\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-9833\"><p><span style=\"font-weight: 400;\">No. A course is optional, because many students improve through regular self practice. A good course helps if you want a structured plan, timed practice, and a teacher who corrects your method.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9834\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-9834\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Which is the best mental maths course for class 12?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9834\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-9834\"><p><span style=\"font-weight: 400;\">There is no single best course for everyone. Look for the right level, clear explanations, timed practice with feedback, a free demo, a schedule that fits your exam year, and honest claims about results.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is mental maths for class 12?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p><span style=\\\"font-weight: 400;\\\">It is the skill of doing calculations such as multiplication, fractions, percentages, powers of ten, and logarithm based estimates quickly in your head, so you can solve maths, science, and commerce problems faster and with fewer errors.<\\\/span><\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"Can I learn mental maths for class 12 online?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p><span style=\\\"font-weight: 400;\\\">Yes. You can practise with daily drills, previous year papers, and an error log, and you can also join recorded or live online classes. Choose a format that gives you practice and feedback, not just videos.<\\\/span><\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"Do I need a mental maths course for class 12 kids?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p><span style=\\\"font-weight: 400;\\\">No. A course is optional, because many students improve through regular self practice. A good course helps if you want a structured plan, timed practice, and a teacher who corrects your method.<\\\/span><\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"Which is the best mental maths course for class 12?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p><span style=\\\"font-weight: 400;\\\">There is no single best course for everyone. Look for the right level, clear explanations, timed practice with feedback, a free demo, a schedule that fits your exam year, and honest claims about results.<\\\/span><\\\/p>\"}}]}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-302b0ff\" data-id=\"302b0ff\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Mental Maths for Class 12: Complete Guide for Grade 12 Students Class 12 asks you to do two hard things [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":27595,"comment_status":"open","ping_status":"open","sticky":false,"template":"rttpg_full_width","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9],"tags":[],"class_list":["post-27564","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-math-explorer-program"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mental Maths for Class 12 | Tips &amp; Practice<\/title>\n<meta name=\"description\" content=\"Explore mental maths for Class 12 with practical techniques to improve logical thinking in solving mathematical problems.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oratrics.com\/blogs\/math-explorer-program\/mental-maths-for-class-12-2\/\" \/>\n<meta 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