Keystones — Bedrock
Five GCSE retrieval questions · 27 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 52 + 29
Answer: 52 + 29 = 81 -
2. Algebra Substitution
If x = 4, find the value of 5x + 8
Answer: 28 -
3. Geometry Converting lengths
Convert 48cm to mm
Answer: 480mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:18
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 20, 2, 20, 4, 19
Answer: 13