Keystones — Bedrock
Five GCSE retrieval questions · 11 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 76 + 55
Answer: 76 + 55 = 131 -
2. Algebra Substitution
If x = 8, find the value of 2x + 7
Answer: 23 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 4, 20, 12
Answer: 12