Keystones — Bedrock
Five GCSE retrieval questions · 20 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 43
Answer: 20 + 43 = 63 -
2. Algebra Substitution
If x = 3, find the value of 2x + 11
Answer: 17 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:14
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 3, 7, 20, 18, 7
Answer: 11