Keystones — Bedrock
Five GCSE retrieval questions · 30 June 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 27
Answer: 20 + 27 = 47 -
2. Algebra Substitution
If x = 5, find the value of 2x + 3
Answer: 13 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:10
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 8, 18, 5, 4, 15
Answer: 10