Keystones — Bedrock
Five GCSE retrieval questions · 31 October 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 24
Answer: 39 + 24 = 63 -
2. Algebra Substitution
If x = 7, find the value of 3x + 11
Answer: 32 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:25
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 9, 17, 20
Answer: 15.333333333333