Keystones — Bedrock
Five GCSE retrieval questions · 23 October 2022 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 16
Answer: 21 + 16 = 37 -
2. Algebra Substitution
If x = 5, find the value of 3x + 9
Answer: 24 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:25
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 20, 8, 4, 17, 11
Answer: 12