Keystones — Bedrock
Five GCSE retrieval questions · 24 March 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 25
Answer: 23 + 25 = 48 -
2. Algebra Substitution
If x = 10, find the value of 2x + 4
Answer: 24 -
3. Geometry Converting lengths
Convert 32cm to mm
Answer: 320mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 17, 12, 10, 9
Answer: 12