15 Times Table

Times Table Chart

Times table for

What is the 15 times table?

Answer

15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180

Every row of the 15 times table is the row above it plus 15, so the table can be rebuilt from the first line instead of recalled whole. The whole grid from 1 to 10 is on the times table chart.

15 Times Table

MultiplicationProduct
15 × 115
15 × 230
15 × 345
15 × 460
15 × 575
15 × 690
15 × 7105
15 × 8120
15 × 9135
15 × 10150
15 × 11165
15 × 12180

The table runs to ×12 because that is how far it is taught in Britain; ×10 is where most other school systems stop. The last two rows follow the same rule as the rest, one step at a time.

15 × 12 = 180

How to Get the Next Row

A times table is repeated addition written out, so the next row is always the current one plus 15. Nothing has to be remembered except the step.

15 × 1 = 15

15 + 15 = 30 → 15 × 2 = 30

30 + 15 = 45 → 15 × 3 = 45

15 × 12 = 180

Rows that come free

  • ×5 is half of ×10: 15 × 5 = 150 ÷ 2 = 75.
  • ×9 is ×10 minus the number: 15 × 9 = 150 − 15 = 135.
  • ×11 is ×10 plus the number: 15 × 11 = 150 + 15 = 165.
  • ×12 is ×10 plus ×2: 15 × 12 = 150 + 30 = 180.

Check It, and What It Is Not

Check by swapping the factors. 15 × 3 = 45 and 3 × 15 = 45 are the same product, so every row of this table appears in another table too, and the two have to agree.

A table is not long multiplication. This page lists one number times 1 to 12; for a product worked out digit by digit, with the carries and the partial products, follow 15 × 12 = 180 into the long multiplication calculator.

The reverse operation is division. Reading the table backwards — 45 ÷ 15 = 3 — is exactly what long division does step by step.

Related Calculations

See Also

Times Table Chart

A times table lists one number multiplied by each of 1 to 12 in turn, and every row is the row above it plus that same number — which is why the table can be rebuilt from memory instead of recalled from it. For example, it can help you find out what is the 15 times table? (The answer is: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180). Enter a number from 1 to 100 (e.g. '15') to get its full table, the step-by-step build-up and the shortcuts that apply to it. The chart above holds the whole grid from 1 to 10, the part learnt by heart at school.

Times Table Chart

Times table for

Times Tables Around 15

NumberTimes table
55, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
66, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72
77, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84
88, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96
99, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108
1010, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120
1111, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132
1212, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144
1313, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156
1414, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168
1515, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180
1616, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192
1717, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204
1818, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216
1919, 38, 57, 76, 95, 114, 133, 152, 171, 190, 209, 228
2020, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240
2424, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288
2525, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300
3030, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360
4040, 80, 120, 160, 200, 240, 280, 320, 360, 400, 440, 480

FAQ

What is the 15 times table?

15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180

How do you learn the 15 times table?

By building it, not by reciting it. Each row is the row above plus 15 (15 + 15 = 30), so the table grows one addition at a time. Two rows come free: 15 × 5 = 150 ÷ 2 = 75, and 15 × 9 = 150 − 15 = 135.

What are the multiples of 15?

The first 12 are 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180. They keep going by 15 after that — a multiple of 15 is any number this table would eventually reach.

How do you check the 15 times table?

Swap the two factors. 15 × 3 = 45 and 3 × 15 = 45 are the same product, because multiplication is commutative — so every row of this table also appears in another table, and the two have to agree. The row where they disagree is the one to redo.

See Also