Keystones — Bedrock
Five GCSE retrieval questions · 9 July 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 63
Answer: 23 + 63 = 86 -
2. Algebra Substitution
If x = 2, find the value of 5x + 10
Answer: 20 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 32:8
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 11, 10, 17
Answer: 12.666666666667