Keystones — Bedrock
Five GCSE retrieval questions · 12 October 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 43
Answer: 39 + 43 = 82 -
2. Algebra Substitution
If x = 2, find the value of 2x + 4
Answer: 8 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 6, 15, 17, 17, 14
Answer: 13.8