Keystones — Bedrock
Five GCSE retrieval questions · 29 March 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 72
Answer: 31 + 72 = 103 -
2. Algebra Substitution
If x = 8, find the value of 2x + 7
Answer: 23 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 17, 24, 6, 5
Answer: 13