Keystones — Bedrock
Five GCSE retrieval questions · 7 October 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 88
Answer: 23 + 88 = 111 -
2. Algebra Substitution
If x = 7, find the value of 4x + 12
Answer: 40 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 6, 17, 15, 2, 6
Answer: 9.2