Keystones — Bedrock
Five GCSE retrieval questions · 25 September 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 27
Answer: 27 + 27 = 54 -
2. Algebra Substitution
If x = 7, find the value of 2x + 6
Answer: 20 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:15
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 13, 20, 12, 8, 9
Answer: 12.4