Keystones — Bedrock
Five GCSE retrieval questions · 2 September 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 95
Answer: 30 + 95 = 125 -
2. Algebra Substitution
If x = 10, find the value of 3x + 9
Answer: 39 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:8
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 2, 18, 7
Answer: 9