Keystones — Bedrock
Five GCSE retrieval questions · 13 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 43
Answer: 25 + 43 = 68 -
2. Algebra Substitution
If x = 2, find the value of 5x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 13, 2, 11, 14, 5
Answer: 9