Keystones — Bedrock
Five GCSE retrieval questions · 1 February 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 20
Answer: 49 + 20 = 69 -
2. Algebra Substitution
If x = 5, find the value of 3x + 4
Answer: 19 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 14, 19, 15, 8
Answer: 14