Keystones — Bedrock
Five GCSE retrieval questions · 4 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 43
Answer: 77 + 43 = 120 -
2. Algebra Substitution
If x = 10, find the value of 2x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 44cm to mm
Answer: 440mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 16, 12, 20, 12, 5
Answer: 13