19 Times Table
Nineteen is prime and looks intimidating, but it sits right next to 20 — and "one less than a round number" is one of the most useful tricks a child will ever learn.
Counting up in 19s: 19, 38, 57, 76, 95, 114, 133, 152, 171, 190
Visual Explorer
Click any line in the table on the left to see it visualised below!
Choose objects:
19 × 1 = 19
1 group of 19 = 19 stars!
Test Yourself
Fill in every answer, then press Check Answers to see how you did.
The clever bit
Twenty lots, minus one lot
Nineteen is prime and has no doubling or splitting shortcut of its own — but it sits one below 20, and that single fact makes it manageable.
Multiply by 20, then subtract the number once:
- 19 × 4 → (20 × 4) − 4 = 80 − 4 = 76
- 19 × 6 → (20 × 6) − 6 = 120 − 6 = 114
- 19 × 9 → (20 × 9) − 9 = 180 − 9 = 171
Multiplying by 20 is easy — double the number, then add a zero. Subtracting the original number once is the only extra step.
Why this works
19 × n is the same as (20 − 1) × n, which expands to (20 × n) − (1 × n) — twenty lots, minus one lot.
A trick worth keeping
“One less than a round number” is not just a 19-times trick. It works for 29 (one less than 30), 99 (one less than 100), and beyond. Learning it here pays off well past this table.
One reassurance
This is meant to be one of the two hardest new tables. Leaning on the 20-minus-1 method every time is the expected approach, not a shortcut for when memory fails.
Step one
Practise the 19 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 19 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 19 times table land on these. Each one has a way in.
19 × 7 = 133
19 × 7 → 20 × 7 = 140, minus one 7 → 133.
19 × 8 = 152
19 × 8 → 20 × 8 = 160, minus one 8 → 152.
19 × 13 = 247
19 × 13 → 20 × 13 = 260, minus one 13 → 247.
Where the 19 times table shows up
Nineteen shows up as an age just before adulthood in many places, and a cricket team plus a substitute is sometimes 19 players in a squad. Three squads of 19 is 3 × 19 = 57 players.
Questions parents ask
What is the trick for the 19 times table?
Multiply by 20 instead — just double the number and add a zero — then subtract the number once. For 19 × 6: 20 × 6 = 120, minus 6 gives 114.
Why is going via 20 easier than multiplying by 19 directly?
20 is a round number, so multiplying by it is just doubling and adding a zero. Since 19 is one less than 20, the answer is always that result minus the original number — one clean subtraction.
What is 19 × 19?
361. Using the trick: 20 × 19 = 380, minus one 19 gives 361.
Is the "one less than a round number" trick useful beyond the 19 times table?
Yes — it works for any number just under a round one, like 29, 99, or 199. Multiply by the round number, then subtract once. It is one of the most reusable mental-math strategies there is.