Keystones — Bedrock
Five GCSE retrieval questions · 14 January 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 37 + 46
Answer: 37 + 46 = 83 -
2. Algebra Substitution
If x = 2, find the value of 7x + 9
Answer: 23 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 20, 18, 13, 9, 15
Answer: 15