Keystones — Bedrock
Five GCSE retrieval questions · 15 November 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 10
Answer: 45 + 10 = 55 -
2. Algebra Substitution
If x = 10, find the value of 6x + 10
Answer: 70 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 18, 6, 11, 18, 15
Answer: 13.6