Keystones — Bedrock
Five GCSE retrieval questions · 1 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 41
Answer: 20 + 41 = 61 -
2. Algebra Substitution
If x = 9, find the value of 3x + 9
Answer: 36 -
3. Geometry Converting lengths
Convert 22cm to mm
Answer: 220mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:10
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 8, 20, 8
Answer: 12