Keystones — Bedrock
Five GCSE retrieval questions · 6 June 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 64 + 56
Answer: 64 + 56 = 120 -
2. Algebra Substitution
If x = 5, find the value of 6x + 10
Answer: 40 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 9, 13, 5, 23, 20
Answer: 14