# How can compensating make adding and subtracting easier?

## What is compensating?

Everyone finds some numbers easier to work with than others. You might find adding or taking away **10** is easier than **9** or **11**.

Compensation is a way of adding or taking away numbers that you find easier.

You add or take away a bit too much or a bit too little, so then you have to add or take away this too.

## Example

**26 - 9 = ?**

Try taking away **10** instead.

**26 - 10 = 16**

You have taken away **1** too many (**10** is **1** more than **9**)

So add the **1** back on

**16 + 1 = 17**

It works for adding too

**33 + 12 = ?**

Try adding **10** instead.

**33 + 10 = 43**

You need to add on **2** more (**10** is **2** less than **12**)

**43 + 2 = 45**