Keystones — Bedrock
Five GCSE retrieval questions · 25 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 24 + 39
Answer: 24 + 39 = 63 -
2. Algebra Substitution
If x = 5, find the value of 4x + 9
Answer: 29 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 14, 10, 1, 19, 11
Answer: 11