Keystones — Bedrock
Five GCSE retrieval questions · 11 January 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 51 + 22
Answer: 51 + 22 = 73 -
2. Algebra Substitution
If x = 4, find the value of 5x + 12
Answer: 32 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 4, 22, 2, 8
Answer: 9