Keystones — Bedrock
Five GCSE retrieval questions · 25 August 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 47
Answer: 38 + 47 = 85 -
2. Algebra Substitution
If x = 5, find the value of 5x + 4
Answer: 29 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:40
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 21, 9, 6
Answer: 12