Keystones — Bedrock
Five GCSE retrieval questions · 28 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 36
Answer: 72 + 36 = 108 -
2. Algebra Substitution
If x = 7, find the value of 3x + 6
Answer: 27 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:6
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 10, 7, 17, 6, 20
Answer: 12