Keystones — Bedrock
Five GCSE retrieval questions · 17 July 2022 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 22
Answer: 77 + 22 = 99 -
2. Algebra Substitution
If x = 3, find the value of 3x + 12
Answer: 21 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:20
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 13, 18, 2, 20, 18
Answer: 14.2