Keystones — Bedrock
Five GCSE retrieval questions · 29 September 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 15
Answer: 17 + 15 = 32 -
2. Algebra Substitution
If x = 8, find the value of 8x + 9
Answer: 73 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:6
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 2, 5, 23
Answer: 10