Keystones — Bedrock
Five GCSE retrieval questions · 10 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 23
Answer: 40 + 23 = 63 -
2. Algebra Substitution
If x = 5, find the value of 7x + 5
Answer: 40 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:40
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 10, 13, 8, 17
Answer: 12