Keystones — Bedrock
Five GCSE retrieval questions · 1 November 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 32
Answer: 81 + 32 = 113 -
2. Algebra Substitution
If x = 9, find the value of 6x + 10
Answer: 64 -
3. Geometry Converting lengths
Convert 22cm to mm
Answer: 220mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:28
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 17, 20, 11, 15, 20
Answer: 16.6