Keystones — Bedrock
Five GCSE retrieval questions · 28 July 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 43
Answer: 38 + 43 = 81 -
2. Algebra Substitution
If x = 5, find the value of 2x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 47cm to mm
Answer: 470mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:18
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 14, 14, 16, 17, 3
Answer: 12.8