Counting on to and back from 20 When you count to 20, you start at 1 (or zero) and count on until you reach 20. Each number is one more than the last.

In this Maths article, learn how to count to 10 with this Year 1 article from BBC Bitesize Primary Maths.

Findings of a study suggest using a ‘hundreds chart’ showing numbers one through 100, beginning with one in the top-left corner, fosters children’s counting by 10s.