Keystones — Bedrock
Five GCSE retrieval questions · 17 October 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 50
Answer: 72 + 50 = 122 -
2. Algebra Substitution
If x = 8, find the value of 3x + 8
Answer: 32 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 4, 9, 6, 17, 4
Answer: 8