Keystones — Bedrock
Five GCSE retrieval questions · 26 August 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 41
Answer: 48 + 41 = 89 -
2. Algebra Substitution
If x = 4, find the value of 2x + 12
Answer: 20 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 12, 15, 13, 20
Answer: 15