Keystones — Bedrock
Five GCSE retrieval questions · 31 May 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 25
Answer: 15 + 25 = 40 -
2. Algebra Substitution
If x = 5, find the value of 3x + 10
Answer: 25 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 7, 5, 18
Answer: 10