Keystones — Bedrock
Five GCSE retrieval questions · 11 November 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 42
Answer: 38 + 42 = 80 -
2. Algebra Substitution
If x = 4, find the value of 4x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 3, 7, 23
Answer: 11