Maths
Checking with the Inverse
Use the inverse relationship between addition and subtraction to check calculations and solve missing-number problems.
MathsAge 7+25 minutes
What this topic covers
- Explain that addition and subtraction undo each other.
- Check an addition with a subtraction and a subtraction with an addition.
- Use the inverse to find a missing number.
Core concept summaries
Key ConceptsOpposites That UndoCheck Your AnswerFind the Missing Number
Practice formats pupils may meet
NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.
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