Keystones — Bedrock
Five GCSE retrieval questions · 6 September 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 10
Answer: 20 + 10 = 30 -
2. Algebra Substitution
If x = 10, find the value of 4x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 35:25
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 20, 6, 13
Answer: 13