Now that children are familiar with addition and subtraction being inverse, and how that relationship can help answer different questions, their understanding can be furthered with this discussion problem.

This Inverse Operations Discussion Problem gives Year 3 children the opportunity to use a real-life context of delicious baked goods at a bakery. If two tasty treats are added together, what's the total? Can subtraction be used to check if the answer is correct? Some answers are given to this open-ended discussion problem!

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