Keystones — Bedrock
Five GCSE retrieval questions · 1 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 66 + 31
Answer: 66 + 31 = 97 -
2. Algebra Substitution
If x = 10, find the value of 7x + 10
Answer: 80 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 20, 7, 20, 9
Answer: 14