Keystones — Bedrock
Five GCSE retrieval questions · 25 September 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 21
Answer: 39 + 21 = 60 -
2. Algebra Substitution
If x = 2, find the value of 5x + 10
Answer: 20 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:25
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 7, 4, 25
Answer: 12