Multiplication Calculator

The answer, the two division facts that come with it, and the shortcut for your numbers

Enter any two numbers and the calculator gives the product, the two division facts it proves, and the mental method that suits that particular pair — the times-11 digit trick, doubling for times 4 and 8, the difference of squares for numbers either side of a middle value, or splitting a number into tens and ones. It is built for the facts people actually look up, like 7 times 8, 11 times 12 or 4 times 19, and for checking homework without just handing over the answer.

Frequently asked questions

What is 7 times 8?

56. A quick way to remember it: 5, 6, 7, 8 — 56 = 7 × 8. Or 7 × 7 = 49, plus one more 7.

What is 11 times 12?

132. Times 11 with a two-digit number: put the digit sum (1 + 2 = 3) between the digits of 12, giving 132.

What is 4 times 19?

76. Double 19 twice: 19 → 38 → 76. Or 4 × 20 = 80, minus 4.

What is 19 times 19?

361. It is 20² − 2 × 20 + 1 = 400 − 40 + 1.

How do I multiply decimals?

Multiply as if they were whole numbers, then count the decimal places in both numbers and give the answer that many. 0.2 × 12: 2 × 12 = 24, one decimal place, so 2.4.