Keystones — Bedrock
Five GCSE retrieval questions · 11 September 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 91 + 66
Answer: 91 + 66 = 157 -
2. Algebra Substitution
If x = 9, find the value of 5x + 10
Answer: 55 -
3. Geometry Converting lengths
Convert 45cm to mm
Answer: 450mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:24
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 9, 22, 14
Answer: 15