Keystones — Bedrock
Five GCSE retrieval questions · 27 February 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 53
Answer: 47 + 53 = 100 -
2. Algebra Substitution
If x = 3, find the value of 3x + 4
Answer: 13 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 8, 10, 12, 2
Answer: 8