Keystones — Bedrock
Five GCSE retrieval questions · 16 January 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 78 + 63
Answer: 78 + 63 = 141 -
2. Algebra Substitution
If x = 9, find the value of 7x + 8
Answer: 71 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:9
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 12, 7, 5
Answer: 8