Reverse Percentages — Free KS3 Worksheet

A free, printable KS3 worksheet on reverse percentages (finding the original amount after a % change) without a calculator, with a full worked answer key. 16 questions graded easy to hard for Years 7, 8 and 9, including sale prices and word problems.

Practise reverse percentages without a calculator. When you're given the amount after a percentage change, that amount is (100 ± the change)% of the original — so find 1% by dividing, then multiply by 100. The questions build from simple reversals up to sale prices, pay rises and word problems, and every one comes with a full worked answer so you can mark it together.