Keystones — Bedrock
Five GCSE retrieval questions · 10 October 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 45
Answer: 25 + 45 = 70 -
2. Algebra Substitution
If x = 10, find the value of 3x + 6
Answer: 36 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 2, 7, 3, 20
Answer: 8