Oh, math. You either love it or hate it. Unfortunately for the haters, math is everywhere. Let us show you a trick that will – I hope – make multiplying easier and teach you how to multiply in your head.

For any two numbers up to 20 x 20, you can do the following:

Let’s start with 15 x 12.

- In your head, the larger number will be on top.
- 15 x 12.

- Take the large number and add the ones digit in the smaller number.
- 15 + 2 = 17

- Add a zero to the end of this number.
- 17 = 170

- Now, multiply the ones digits of each number.
- 5 x 2 = 10

- Add the two numbers.
- 170 + 10 = 180

Let’s try some more.

19 x 14

- 19 + 4 = 23
- 230
- 9 x 4 = 36
- 230 + 36 = 266

18 x 13

- 18 + 3 = 21
- 210
- 8 x 3 = 24
- 210 + 24 = 234

Your turn! Let’s practice. Try 16 x 14. Don’t cheat….

Do the steps. You can do this.

Did you get 200 + 24 = 224?

Yay! Bam…you’re a math genius!