Table of contents
- What Is the Table of 18?
- Multiplication Table for 18 (1 to 10)
- Table of 18 from 1 to 20
- 18's Multiplication Chart: Multiples Beyond 20
- Show Multiples of 18
- Easy Tricks to Remember the 18 Times Table
- Square of 1 to 50 and How It Connects to the Table of 18
- Factors and Divisibility Rule of 18
- Where You Use the Table of 18 in Real Life
- Common Mistakes to Avoid
- Free Table of 18 Worksheet (With Answers)
- Practice Tips for Faster Learning
- Conclusion
- Frequently Asked Questions
Let’s be honest: the table of 18 looks a little scary the first time you see it. But once you spot a few patterns, it turns out to be much friendlier than most people expect. In this guide, we’ll walk through the 18 times table step by step, share the shortcuts students and teachers actually use, and show how it connects to the square of 1 to 50. There’s also a free worksheet with answers at the end, so you can test yourself right away.
What Is the Table of 18?
The table of 18 is simply what you get when you multiply 18 by 1, 2, 3 and so on. Each answer is a multiple of 18. So 18 × 1 = 18, 18 × 2 = 36, and 18 × 3 = 54.
You’ll bump into this table when you work with equal groups, time, money and measurements. It also comes in handy for division, factors, LCM and HCF. Most kids meet it in grades 4 to 7, but it’s never too late to learn it.
Multiplication Table for 18 (1 to 10)
Start small. Read these first ten lines out loud a couple of times, then cover the answers and see how many you remember.
Multiplication | Result | ||
18 × 1 | 18 | ||
18 × 2 | 36 | ||
18 × 3 | 54 | ||
18 × 4 | 72 | ||
18 × 5 | 90 | ||
18 × 6 | 108 | ||
18 × 7 | 126 | ||
18 × 8 | 144 | ||
18 × 9 | 162 | ||
18 × 10 | 180 |
Table of 18 from 1 to 20
Feeling good about the first ten? Great. Here is the complete table of 18 from 1 to 20, with the second half sitting right beside the first.
Multiplication | Result | Multiplication | Result |
18 × 1 | 18 | 18 × 11 | 198 |
18 × 2 | 36 | 18 × 12 | 216 |
18 × 3 | 54 | 18 × 13 | 234 |
18 × 4 | 72 | 18 × 14 | 252 |
18 × 5 | 90 | 18 × 15 | 270 |
18 × 6 | 108 | 18 × 16 | 288 |
18 × 7 | 126 | 18 × 17 | 306 |
18 × 8 | 144 | 18 × 18 | 324 |
18 × 9 | 162 | 18 × 19 | 342 |
18 × 10 | 180 | 18 × 20 | 360 |
18's Multiplication Chart: Multiples Beyond 20
Some questions go past 20, so here is a handy 18’s multiplication chart for 21 to 30.
Multiplication | Result |
18 × 21 | 378 |
18 × 22 | 396 |
18 × 23 | 414 |
18 × 24 | 432 |
18 × 25 | 450 |
18 × 26 | 468 |
18 × 27 | 486 |
18 × 28 | 504 |
18 × 29 | 522 |
18 × 30 | 540 |
Show Multiples of 18
Need to show multiples of 18 in one quick line? Here are the first twenty:
18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216, 234, 252, 270, 288, 306, 324, 342, 360.
A few facts about these numbers:
- Every multiple of 18 is even, so you will never land on an odd number.
- The digits of each answer add up to 9 or a multiple of 9. Take 162: 1 + 6 + 2 = 9. Or 324: 3 + 2 + 4 = 9.
- The last digit keeps cycling through 8, 6, 4, 2, 0, which is a great way to double-check yourself.
Easy Tricks to Remember the 18 Times Table
No need to cram. These four tricks make the 18 times table a lot lighter.
Trick 1: Multiply by 20 and subtract
Because 18 is just 20 minus 2, you can multiply by 20 first and then take away double the number.
Example: 18 × 7. Start with 20 × 7 = 140. Then subtract 2 × 7 = 14. That leaves 126.
Trick 2: Double the table of 9
Since 18 is 2 × 9, every answer here is double the matching answer in the 9 table. Know that 9 × 6 = 54? Then 18 × 6 = 108.
Trick 3: Use the last-digit pattern
The last digit goes 8, 6, 4, 2, 0 and then starts over. It’s a quick way to catch mistakes: 18 × 13 has to end in 4, and 234 does.
Trick 4: Break 18 into 10 + 8
Multiply by 10, multiply by 8, then add the two. For 18 × 12, that’s 120 + 96 = 216. It works nicely for bigger numbers too.
Square of 1 to 50 and How It Connects to the Table of 18
One result in the table of 18 is special: 18 × 18 = 324, the square of 18. Knowing the square of 1 to 50 speeds up lots of problems, since squares turn up in area, algebra and number patterns. Here’s the full list to keep handy.
Number | Square | Number | Square | Number | Square |
1 | 1 | 18 | 324 | 35 | 1225 |
2 | 4 | 19 | 361 | 36 | 1296 |
3 | 9 | 20 | 400 | 37 | 1369 |
4 | 16 | 21 | 441 | 38 | 1444 |
5 | 25 | 22 | 484 | 39 | 1521 |
6 | 36 | 23 | 529 | 40 | 1600 |
7 | 49 | 24 | 576 | 41 | 1681 |
8 | 64 | 25 | 625 | 42 | 1764 |
9 | 81 | 26 | 676 | 43 | 1849 |
10 | 100 | 27 | 729 | 44 | 1936 |
11 | 121 | 28 | 784 | 45 | 2025 |
12 | 144 | 29 | 841 | 46 | 2116 |
13 | 169 | 30 | 900 | 47 | 2209 |
14 | 196 | 31 | 961 | 48 | 2304 |
15 | 225 | 32 | 1024 | 49 | 2401 |
16 | 256 | 33 | 1089 | 50 | 2500 |
17 | 289 | 34 | 1156 |
A fun link between 18 and perfect squares
Some multiples of 18 are perfect squares too. The reason is that 18 = 2 × 3 × 3, so it needs just one more 2 (or 2 times a square) to become a square itself.
- 18 × 2 = 36, which is 6²
- 18 × 8 = 144, which is 12²
- 18 × 18 = 324, which is 18²
- 18 × 32 = 576, which is 24²
- 18 × 50 = 900, which is 30²
Try spotting this pattern yourself while you practise. It’s a neat way to see the table of 18 and the square of 1 to 50 working together.
Factors and Divisibility Rule of 18
The factors of 18 are 1, 2, 3, 6, 9 and 18. A number divides by 18 if it divides by both 2 and 9, meaning it is even and its digits add up to a multiple of 9.
Quick check: is 432 divisible by 18? It’s even, and 4 + 3 + 2 = 9, so yes. 432 ÷ 18 = 24.
Where You Use the Table of 18 in Real Life
- At the shop: a pack has 18 items and you buy 7 packs. That’s 18 × 7 = 126 items.
- With time: a task takes 18 minutes and you do it 5 times. That’s 18 × 5 = 90 minutes.
- On the golf course: there are 18 holes, so 3 rounds means 18 × 3 = 54 holes.
- In a school hall: 18 chairs per row across 9 rows gives you 18 × 9 = 162 chairs.
Common Mistakes to Avoid
- Mixing up 18 × 6 (108) and 18 × 7 (126). If you’re unsure, try the 20-minus-2 trick to check.
- Forgetting to carry in 18 × 8. Say it slowly: 8 × 8 = 64, write 4 and carry 6, then 8 × 1 + 6 = 14. The answer is 144.
- Skipping the final check. It only takes a few seconds to look at the last digit and add up the digits.
Free Table of 18 Worksheet (With Answers)
Grab a pen and some paper, or copy this into a document and print it. It also works as a quick quiz at home or in class.
Part A: Solve
- 18 × 3 = ____
- 18 × 7 = ____
- 18 × 9 = ____
- 18 × 12 = ____
- 18 × 15 = ____
Part B: Fill in the missing numbers
18, 36, ____, 72, ____, 108, ____, 144, 162, ____
Part C: Division
- 144 ÷ 18 = ____
- 252 ÷ 18 = ____
- 324 ÷ 18 = ____
- 180 ÷ 18 = ____
Part D: Squares
- What is the square of 18?
- What is the square of 25?
- What is the square of 40?
Part E: Word problems
- A box holds 18 pencils. How many pencils are in 7 boxes?
- A teacher gives 18 stickers to each of 12 students. How many stickers are used?
- Is 198 a multiple of 18? Show how you know.
Answer Key
- Part A: 54, 126, 162, 216, 270
- Part B: 54, 90, 126, 180
- Part C: 8, 14, 18, 10
- Part D: 324, 625, 1600
- Part E: 126 pencils; 216 stickers; yes, because 18 × 11 = 198 (it is even and 1 + 9 + 8 = 18, a multiple of 9)
Practice Tips for Faster Learning
- Take it in small bites. Learn five lines at a time instead of all twenty.
- Say the table out loud, then try writing it from memory.
- Practise for ten minutes every day. It beats one long session by a mile.
- Revise the 9 table alongside it, since 18 is just double 9.
- Try the worksheet again after a week and see how much your score has improved.
Conclusion
The table of 18 really is easier than it looks. Use the 20-minus-2 trick, lean on the table of 9, and watch the last-digit pattern, and you’ll get faster in no time. Keep the multiplication table for 18 and the square of 1 to 50 close by while you revise, try the worksheet, then check yourself with the answer key. Ten minutes a day goes a long way.
Frequently Asked Questions
It’s 216.
Multiply by 20 and take away twice the number, or simply double the answer from the table of 9.
It’s 324, because 18 × 18 = 324.
No. It has the factors 1, 2, 3, 6, 9 and 18, which makes it a composite number.
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