Keystones — Bedrock
Five GCSE retrieval questions · 22 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 39
Answer: 40 + 39 = 79 -
2. Algebra Substitution
If x = 3, find the value of 2x + 6
Answer: 12 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 16, 17, 13, 14
Answer: 15