Keystones — Bedrock
Five GCSE retrieval questions · 1 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 41
Answer: 20 + 41 = 61 -
2. Algebra Substitution
If x = 10, find the value of 8x + 11
Answer: 91 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:35
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 5, 6, 19, 18
Answer: 12