Keystones — Bedrock
Five GCSE retrieval questions · 21 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 11 + 46
Answer: 11 + 46 = 57 -
2. Algebra Substitution
If x = 7, find the value of 2x + 7
Answer: 21 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 12, 19, 8
Answer: 13