Keystones — Bedrock
Five GCSE retrieval questions · 31 August 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 17
Answer: 31 + 17 = 48 -
2. Algebra Substitution
If x = 5, find the value of 2x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 13, 11, 5, 6, 14
Answer: 9.8