Keystones — Bedrock
Five GCSE retrieval questions · 15 December 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 29
Answer: 20 + 29 = 49 -
2. Algebra Substitution
If x = 6, find the value of 5x + 5
Answer: 35 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:40
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 5, 9, 10
Answer: 8