Keystones — Bedrock
Five GCSE retrieval questions · 8 October 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 46 + 30
Answer: 46 + 30 = 76 -
2. Algebra Substitution
If x = 3, find the value of 6x + 4
Answer: 22 -
3. Geometry Converting lengths
Convert 14cm to mm
Answer: 140mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:28
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 3, 2, 19, 9, 17
Answer: 10