Keystones — Bedrock
Five GCSE retrieval questions · 17 September 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 15
Answer: 30 + 15 = 45 -
2. Algebra Substitution
If x = 9, find the value of 6x + 8
Answer: 62 -
3. Geometry Converting lengths
Convert 14cm to mm
Answer: 140mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:40
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 5, 20, 6, 7, 7
Answer: 9