Keystones — Bedrock
Five GCSE retrieval questions · 10 July 2022 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 85 + 77
Answer: 85 + 77 = 162 -
2. Algebra Substitution
If x = 10, find the value of 8x + 6
Answer: 86 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:25
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 15, 20, 12
Answer: 15.666666666667