When things are grouped in fives, we can count them easily going up in 5s.

Count the red spots.

We could count them one at a time, but that would take forever!

A much better way is to count them in 5s: 5, 10, 15, 20, 25

5	10	15	20	25

There are 25 red spots here.

Shall we have a go at some questions now?