Keystones — Bedrock
Five GCSE retrieval questions · 9 November 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 83 + 66
Answer: 83 + 66 = 149 -
2. Algebra Substitution
If x = 5, find the value of 4x + 12
Answer: 32 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 10, 20, 20, 7, 8
Answer: 13