Keystones — Bedrock
Five GCSE retrieval questions · 21 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 65 + 68
Answer: 65 + 68 = 133 -
2. Algebra Substitution
If x = 2, find the value of 2x + 3
Answer: 7 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:15
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 8, 20, 19, 13
Answer: 15