Keystones — Bedrock
Five GCSE retrieval questions · 24 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 10
Answer: 31 + 10 = 41 -
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 20:15
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 16, 9, 11
Answer: 12