Keystones — Bedrock
Five GCSE retrieval questions · 12 April 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 78
Answer: 71 + 78 = 149 -
2. Algebra Substitution
If x = 5, find the value of 6x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:4
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 11, 15, 15, 8, 21
Answer: 14