Keystones — Bedrock
Five GCSE retrieval questions · 19 June 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 38
Answer: 34 + 38 = 72 -
2. Algebra Substitution
If x = 9, find the value of 3x + 5
Answer: 32 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:30
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 20, 7, 8, 1
Answer: 9