Keystones — Bedrock
Five GCSE retrieval questions · 8 November 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 86 + 21
Answer: 86 + 21 = 107 -
2. Algebra Substitution
If x = 10, find the value of 2x + 4
Answer: 24 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 19, 8, 16, 7, 10
Answer: 12