Keystones — Bedrock
Five GCSE retrieval questions · 4 September 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 47
Answer: 17 + 47 = 64 -
2. Algebra Substitution
If x = 10, find the value of 2x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 23, 5, 2, 7, 8
Answer: 9