Keystones — Bedrock
Five GCSE retrieval questions · 14 November 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 47
Answer: 34 + 47 = 81 -
2. Algebra Substitution
If x = 5, find the value of 2x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 17, 17, 15
Answer: 16.333333333333