Keystones — Bedrock
Five GCSE retrieval questions · 21 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 28
Answer: 28 + 28 = 56 -
2. Algebra Substitution
If x = 5, find the value of 2x + 3
Answer: 13 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:32
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 19, 7, 11, 20, 13
Answer: 14