Keystones — Bedrock
Five GCSE retrieval questions · 28 February 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 37
Answer: 45 + 37 = 82 -
2. Algebra Substitution
If x = 5, find the value of 3x + 6
Answer: 21 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 15, 7, 12, 6, 20
Answer: 12