Keystones — Bedrock
Five GCSE retrieval questions · 26 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 86 + 34
Answer: 86 + 34 = 120 -
2. Algebra Substitution
If x = 8, find the value of 8x + 4
Answer: 68 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:40
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 11, 12, 2, 10, 25
Answer: 12