Keystones — Bedrock
Five GCSE retrieval questions · 27 December 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 48
Answer: 47 + 48 = 95 -
2. Algebra Substitution
If x = 3, find the value of 5x + 7
Answer: 22 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 8, 12, 8, 10, 17
Answer: 11