FREE Proportion with Powers and Roots | Maths Codebreaker | Answers Included

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Direct and inverse proportion involving squares, cubes and square roots.

This FREE resource contains one complete A4 pupil worksheet with 25 questions and a matching answer page with workings, plus a product-family guide. Pupils solve the maths, match answers to letters in the code grid and decode the hidden words.

Difficulty: Level 10 of 10 within this range (1 is easiest; 10 is most demanding). These levels are a guide to relative challenge, not GCSE grades.

Three questions from this worksheet:
1. p is directly proportional to the square root of q. When q = 16, p = 12. Find p when q = 36.
2. h is inversely proportional to the square of a. When a = 5, h = 36. Find h when a = 6.
3. m is directly proportional to the square of d. When d = 4, m = 16. Find m when d = 7.

Use for focused practice, consolidation, homework or a lesson activity after teaching the method. Print the pupil page for learners and retain the answer page for checking. Follow the rounding and unit instructions on the sheet.

This resource belongs to a completed 100-topic Maths Codebreakers range. Halloween codebreaker resources are also available. A mixed-topic revision codebreaker range is coming soon. These other ranges are separate resources and are not included in this download.