Keystones — Bedrock
Five GCSE retrieval questions · 6 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 13
Answer: 38 + 13 = 51 -
2. Algebra Substitution
If x = 4, find the value of 7x + 12
Answer: 40 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 4, 12, 15, 12, 12
Answer: 11