Keystones — Bedrock
Five GCSE retrieval questions · 6 September 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 36 + 17
Answer: 36 + 17 = 53 -
2. Algebra Substitution
If x = 7, find the value of 2x + 9
Answer: 23 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 5, 15, 14, 14
Answer: 12