Keystones — Bedrock
Five GCSE retrieval questions · 20 April 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 39
Answer: 45 + 39 = 84 -
2. Algebra Substitution
If x = 3, find the value of 4x + 7
Answer: 19 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 15, 13, 7, 9
Answer: 11