Year 1 Missing Number Subtraction Worksheets

These Year 1 missing number subtraction worksheets help children practise reasoning with take-away number sentences. Instead of only subtracting to find an answer, children need to work out which number is missing, which builds stronger understanding of subtraction and number relationships.

The worksheets include simple subtraction questions where the starting number, the number taken away or the answer may be missing. This encourages children to think carefully, use counting strategies and connect subtraction with related addition facts.

Missing number subtraction helps children understand that subtraction is not just a single procedure. Children learn to reason about what has changed, what is left and what number is needed to complete the number sentence.

Parents can use these worksheets to help children practise subtraction reasoning at home. If a child is stuck, they can draw objects, use counters or count backwards to work out the missing number.

Teachers can use missing number subtraction worksheets for reasoning practice, small-group support, lesson starters or revision after subtraction lessons. Once children are confident, they can move on to mixed missing number questions, inverse operations and simple word problems.