Keystones — Bedrock
Five GCSE retrieval questions · 29 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 19
Answer: 39 + 19 = 58 -
2. Algebra Substitution
If x = 3, find the value of 3x + 7
Answer: 16 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:6
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 2, 15, 16
Answer: 11