Keystones — Bedrock
Five GCSE retrieval questions · 8 March 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 20
Answer: 42 + 20 = 62 -
2. Algebra Substitution
If x = 3, find the value of 2x + 7
Answer: 13 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 20, 13, 7, 14, 6
Answer: 12