Keystones — Bedrock
Five GCSE retrieval questions · 30 May 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 75 + 43
Answer: 75 + 43 = 118 -
2. Algebra Substitution
If x = 2, find the value of 2x + 6
Answer: 10 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 18, 2, 3, 21
Answer: 11