Keystones — Bedrock
Five GCSE retrieval questions · 10 May 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 72
Answer: 39 + 72 = 111 -
2. Algebra Substitution
If x = 2, find the value of 2x + 9
Answer: 13 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 11, 16, 11, 9, 3
Answer: 10