Inverse Operations Lesson Pack | KS3–GCSE Maths | Unpicking Processes, Checks & Missing Number Probl

Help students master inverse operations and exam-style checking methods with this complete Inverse Checks Lesson Pack, ideal for KS3, GCSE Foundation, Functional Skills L1–L2, or intervention groups.

The PowerPoint lesson introduces inverse operations through clear, accessible modelling. Using everyday analogies (e.g., Paula reversing her steps to leave a party) and worked examples, pupils learn:

This pack is ideal for building confidence, reducing careless errors, and ensuring pupils understand how to check their work independently—an essential skill for KS3 progression and GCSE success.

What’s Included

• ◆ Full teaching PowerPoint on inverse operations and reversing processes
◆ Clear examples of exam-style inverse checks
◆ Worksheet with calculation checks, missing numbers & number puzzles
◆ Real-life contexts: percentages, averages, volume, exchange rates
◆Multi-step “I think of a number…” problems
◆ Challenge section for higher-level reasoning
◆ Complete answer sheet

Why Teachers Love It

✔ Perfect for KS3–GCSE and Functional Skills
✔ Strong emphasis on reasoning, method and checking
✔ Engaging examples that demystify inverse processes
✔ Ideal for retrieval practice, intervention and homework
✔ Print-and-go with all answers included

If this resource supports your learners, please consider leaving a review—your feedback helps me continue creating high-quality maths resources.