Keystones — Bedrock
Five GCSE retrieval questions · 12 April 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 25
Answer: 41 + 25 = 66 -
2. Algebra Substitution
If x = 9, find the value of 8x + 10
Answer: 82 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 13, 13, 10, 20, 9
Answer: 13