Keystones — Bedrock
Five GCSE retrieval questions · 18 August 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 23
Answer: 30 + 23 = 53 -
2. Algebra Substitution
If x = 3, find the value of 2x + 4
Answer: 10 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:6
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 2, 9, 7, 15, 19
Answer: 10.4