Keystones — Bedrock
Five GCSE retrieval questions · 23 October 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 22
Answer: 45 + 22 = 67 -
2. Algebra Substitution
If x = 2, find the value of 4x + 10
Answer: 18 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:8
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 4, 18
Answer: 14