Keystones — Bedrock
Five GCSE retrieval questions · 2 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 85
Answer: 33 + 85 = 118 -
2. Algebra Substitution
If x = 8, find the value of 3x + 4
Answer: 28 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:20
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 22, 17, 2, 20, 4
Answer: 13