This activity is about taking ten away from a given number.

Example

If I have 43 sweets and then eat 10 of them, how many sweets are left?

43 sweets		I eat 10 sweets

Write the number that is 10 fewer than 43.

Answer

Count back 10 on the number line.

43 - 10 = 33

Can you see that when you count back 10 from a number, only the tens digit changes, the ones digit remains the same.

So, 72 - 10 = 62 only the tens digit changed, from 7 to 6

59 - 10 = 49 only the tens digit changed, from 5 to 4.

Let's try some questions now, maths whizz!