Keystones — Bedrock
Five GCSE retrieval questions · 20 March 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 27
Answer: 20 + 27 = 47 -
2. Algebra Substitution
If x = 7, find the value of 7x + 3
Answer: 52 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 9, 8, 17, 6
Answer: 10