Keystones — Bedrock
Five GCSE retrieval questions · 8 July 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 35
Answer: 25 + 35 = 60 -
2. Algebra Substitution
If x = 6, find the value of 2x + 3
Answer: 15 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 19, 11, 17, 10, 13
Answer: 14