Keystones — Bedrock
Five GCSE retrieval questions · 8 June 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 40
Answer: 17 + 40 = 57 -
2. Algebra Substitution
If x = 6, find the value of 7x + 8
Answer: 50 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:32
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 9, 18, 6, 13, 9
Answer: 11