About these Year 1 one more and one less worksheets
These Year 1 one more and one less worksheets help children understand how numbers sit next to each other in the number system. Finding one more and one less is an important KS1 skill because it supports counting, number order, addition, subtraction and comparing numbers.
Children use these worksheets to practise identifying the number before and after a given number. The activities help children connect counting forwards with one more, and counting backwards with one less, which builds stronger number sense.