Keystones — Bedrock
Five GCSE retrieval questions · 15 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 31
Answer: 20 + 31 = 51 -
2. Algebra Substitution
If x = 9, find the value of 7x + 4
Answer: 67 -
3. Geometry Converting lengths
Convert 34cm to mm
Answer: 340mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 3, 7, 6, 20
Answer: 9