Keystones — Bedrock
Five GCSE retrieval questions · 21 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 95 + 51
Answer: 95 + 51 = 146 -
2. Algebra Substitution
If x = 8, find the value of 5x + 11
Answer: 51 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 17, 3, 20
Answer: 15