Keystones — Bedrock
Five GCSE retrieval questions · 28 August 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 13 + 17
Answer: 13 + 17 = 30 -
2. Algebra Substitution
If x = 7, find the value of 5x + 4
Answer: 39 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 4, 19, 9, 12
Answer: 11