Keystones — Bedrock
Five GCSE retrieval questions · 12 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 62 + 68
Answer: 62 + 68 = 130 -
2. Algebra Substitution
If x = 2, find the value of 5x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 17cm to mm
Answer: 170mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 20, 25, 7, 10, 8
Answer: 14