Keystones — Bedrock
Five GCSE retrieval questions · 6 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 66
Answer: 71 + 66 = 137 -
2. Algebra Substitution
If x = 6, find the value of 4x + 6
Answer: 30 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 9, 13, 6, 16
Answer: 11