Keystones — Bedrock
Five GCSE retrieval questions · 28 January 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 61
Answer: 25 + 61 = 86 -
2. Algebra Substitution
If x = 4, find the value of 6x + 6
Answer: 30 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:40
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 16, 18, 15
Answer: 16.333333333333