Keystones — Bedrock
Five GCSE retrieval questions · 11 July 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 39
Answer: 27 + 39 = 66 -
2. Algebra Substitution
If x = 10, find the value of 4x + 8
Answer: 48 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 7, 5, 24
Answer: 12