Keystones — Bedrock
Five GCSE retrieval questions · 30 November 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 43 + 81
Answer: 43 + 81 = 124 -
2. Algebra Substitution
If x = 4, find the value of 5x + 4
Answer: 24 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:10
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 11, 10, 6
Answer: 9