Keystones — Bedrock
Five GCSE retrieval questions · 31 March 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 66 + 73
Answer: 66 + 73 = 139 -
2. Algebra Substitution
If x = 10, find the value of 7x + 3
Answer: 73 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 7, 9, 2
Answer: 6