Keystones — Bedrock
Five GCSE retrieval questions · 9 October 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 39
Answer: 12 + 39 = 51 -
2. Algebra Substitution
If x = 4, find the value of 6x + 11
Answer: 35 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:25
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 17, 11, 2, 6
Answer: 9