Test out your knowledge of counting on to and back from 20 with this quiz, then read on to complete the page. All the numbers between 10 and 20 are made up of 1 ten and different amounts of ones.

Ordering numbers Find out how to order of numbers from 1 to 10. Numbers from 11 to 19 Explore how the numbers 11 to 19 are made up of tens and ones. Counting on and back to 20 Learn on how to ...