Keystones — Bedrock
Five GCSE retrieval questions · 22 September 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 43
Answer: 23 + 43 = 66 -
2. Algebra Substitution
If x = 7, find the value of 4x + 10
Answer: 38 -
3. Geometry Converting lengths
Convert 32cm to mm
Answer: 320mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 5, 12, 20, 15
Answer: 13