## Category: Number Bonds to 20

Adding numbers with 20 as maximum result. e.g. 6+9=15.

Number bonds are a pair of numbers that add up to another number. Adding to 20 often involves crossing the 10s and this is often tricky for some children.

Lots of practice especially practically such as with number frames, blocks etc will help children grasp the concept. There are electronic versions of these here too.