Keystones — Bedrock
Five GCSE retrieval questions · 27 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 65 + 52
Answer: 65 + 52 = 117 -
2. Algebra Substitution
If x = 10, find the value of 6x + 10
Answer: 70 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:30
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 3, 23, 17, 17
Answer: 15