Keystones — Bedrock
Five GCSE retrieval questions · 27 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 17
Answer: 22 + 17 = 39 -
2. Algebra Substitution
If x = 7, find the value of 2x + 11
Answer: 25 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 3, 15, 6
Answer: 8