Keystones — Bedrock
Five GCSE retrieval questions · 21 October 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 38
Answer: 30 + 38 = 68 -
2. Algebra Substitution
If x = 2, find the value of 3x + 9
Answer: 15 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 17, 15, 19, 5
Answer: 14