Keystones — Bedrock
Five GCSE retrieval questions · 24 December 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 20
Answer: 90 + 20 = 110 -
2. Algebra Substitution
If x = 5, find the value of 3x + 7
Answer: 22 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:12
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 17, 9, 7
Answer: 11