Keystones — Bedrock
Five GCSE retrieval questions · 13 June 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 57 + 80
Answer: 57 + 80 = 137 -
2. Algebra Substitution
If x = 5, find the value of 3x + 10
Answer: 25 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:40
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 5, 18, 10
Answer: 11