18 Times Table
Eighteen is double nine, so every trick that makes the 9 times table friendly — the finger trick, the digit patterns — feeds straight into 18 once you add one doubling step.
Counting up in 18s: 18, 36, 54, 72, 90, 108, 126, 144, 162, 180
Visual Explorer
Click any line in the table on the left to see it visualised below!
Choose objects:
18 × 1 = 18
1 group of 18 = 18 stars!
Test Yourself
Fill in every answer, then press Check Answers to see how you did.
The clever bit
Double the 9 times table
Eighteen is double nine, so the whole 9 times table — patterns and all — becomes a shortcut here.
- 18 × 4 → double (9 × 4 = 36) = 72
- 18 × 6 → double (9 × 6 = 54) = 108
- 18 × 9 → double (9 × 9 = 81) = 162
Use the 9 times table’s own ten-minus-one trick to get there fast: 9 × 7 = 70 − 7 = 63, then double it → 18 × 7 = 126.
The 20-minus-2 alternative
For larger numbers, going via 20 can be quicker than doubling nine:
- 18 × 8 → (20 × 8) − (2 × 8) = 160 − 16 = 144
Both methods reach the same place — use whichever feels faster for a given fact.
One reassurance
If the 9 times table is solid, 18 costs one extra doubling step. Nothing about the number 18 itself needs to be memorised from scratch.
Step one
Practise the 18 times table
Pick the answer you think is right. Nothing is timed and nothing is scored — this part is just for getting comfortable.
Practice needs JavaScript switched on. You can still read the whole table above — it works everywhere.
Step two
Take the 18 times table quiz
Ten questions, typed in. Get any wrong and you can practise just those straight afterwards.
The quiz needs JavaScript switched on. You can still read the whole table above — it works everywhere.
The ones people trip on
Most mistakes in the 18 times table land on these. Each one has a way in.
18 × 7 = 126
18 × 7 → double 9 × 7. 9 × 7 = 63 (70 − 7), so double it: 126.
18 × 8 = 144
18 × 8 → double 9 × 8. 9 × 8 = 72 (80 − 8), so double it: 144.
18 × 13 = 234
18 × 13 → (20 × 13) − (2 × 13) = 260 − 26 = 234.
Where the 18 times table shows up
Many board games use an 18-square path around the edge, and some countries set the voting age at 18. Five 18-year-olds have a combined age of 5 × 18 = 90 years.
Questions parents ask
What is the quickest way to learn the 18 times table?
Learn the 9 times table first — using the ten-minus-one trick or the finger trick — then double every answer. 18 × 6 is double of 9 × 6 (54), which is 108.
Is there a shortcut using 20 minus 2?
Yes. 18 is 20 − 2, so 18 × n = (20 × n) − (2 × n). For 18 × 7: 20 × 7 = 140, minus 2 × 7 = 14, gives 126. This is often faster for larger numbers than doubling the 9 times table.
What is 18 × 18?
324. Using double-of-9: 9 × 18 = 162 (via 20 × 18 − 2 × 18 = 360 − 36), and double 162 is 324.
Do the 9 times table digit patterns still work for 18?
Not directly on the 18-times answers themselves, but they still speed up the first step. Since 18 × n = double(9 × n), getting to the 9-times answer quickly using its patterns still saves time overall.