Keystones — Bedrock
Five GCSE retrieval questions · 26 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 35 + 31
Answer: 35 + 31 = 66 -
2. Algebra Substitution
If x = 5, find the value of 3x + 7
Answer: 22 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 15, 3, 14, 7, 16
Answer: 11