Keystones — Bedrock
Five GCSE retrieval questions · 22 January 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 95
Answer: 42 + 95 = 137 -
2. Algebra Substitution
If x = 5, find the value of 3x + 7
Answer: 22 -
3. Geometry Converting lengths
Convert 22cm to mm
Answer: 220mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 3, 7, 2, 12, 10
Answer: 6.8