Keystones — Bedrock
Five GCSE retrieval questions · 21 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 57 + 28
Answer: 57 + 28 = 85 -
2. Algebra Substitution
If x = 3, find the value of 8x + 5
Answer: 29 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 15, 2, 20, 19
Answer: 14