Keystones — Bedrock
Five GCSE retrieval questions · 14 October 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 75
Answer: 30 + 75 = 105 -
2. Algebra Substitution
If x = 6, find the value of 3x + 8
Answer: 26 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:16
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 5, 20, 17
Answer: 14