Keystones — Bedrock
Five GCSE retrieval questions · 30 July 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 21
Answer: 17 + 21 = 38 -
2. Algebra Substitution
If x = 3, find the value of 2x + 5
Answer: 11 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 10, 14, 20, 18
Answer: 15.5