Now that Year 3 children are more familiar with how addition and subtraction are inverse operations, why not use this resource to help them consolidate that understanding?

This Inverse Operations Reasoning and Problem Solving worksheet gives children the chance to reason how addition and subtraction are inverse to each other. They will investigate whether given answers are correct or incorrect, find possible answers to a partially-covered bar model and reason which number sentences are not inverses to given calculations, and why. Answers are also provided!

Other resources are available to consolidate learning further: a varied fluency worksheet, a discussion problem and a fluency matrix.