Keystones — Bedrock
Five GCSE retrieval questions · 11 December 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 83 + 61
Answer: 83 + 61 = 144 -
2. Algebra Substitution
If x = 7, find the value of 5x + 7
Answer: 42 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:16
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 18, 7, 18, 12, 10
Answer: 13