Keystones — Bedrock
Five GCSE retrieval questions · 10 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 57 + 52
Answer: 57 + 52 = 109 -
2. Algebra Substitution
If x = 5, find the value of 8x + 5
Answer: 45 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 17, 18, 11, 11, 8
Answer: 13