Keystones — Bedrock
Five GCSE retrieval questions · 2 January 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 69 + 27
Answer: 69 + 27 = 96 -
2. Algebra Substitution
If x = 10, find the value of 2x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:16
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 8, 18, 15, 16, 18
Answer: 15