Keystones — Bedrock
Five GCSE retrieval questions · 27 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 40
Answer: 32 + 40 = 72 -
2. Algebra Substitution
If x = 3, find the value of 2x + 6
Answer: 12 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:8
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 4, 15, 9, 12
Answer: 10