This KS1 Maths article you will learn how to count within 20 by counting on to and count back from 20. We also have a KS1 Maths quiz and lots of examples.

KS1 and KS2 SATs resources for maths and English, hand-picked by BBC Bitesize. Helping year 2 and year 6 children get ready for the 2025 SATs tests.