Keystones — Bedrock
Five GCSE retrieval questions · 20 February 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 92 + 52
Answer: 92 + 52 = 144 -
2. Algebra Substitution
If x = 10, find the value of 3x + 9
Answer: 39 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:14
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 14, 4, 13, 13, 16
Answer: 12