Keystones — Bedrock
Five GCSE retrieval questions · 18 March 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 43 + 27
Answer: 43 + 27 = 70 -
2. Algebra Substitution
If x = 8, find the value of 5x + 8
Answer: 48 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:12
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 4, 11, 13, 2, 15
Answer: 9