Keystones — Bedrock
Five GCSE retrieval questions · 10 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 42
Answer: 17 + 42 = 59 -
2. Algebra Substitution
If x = 8, find the value of 5x + 10
Answer: 50 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 7, 13, 17, 11
Answer: 12