Keystones — Bedrock
Five GCSE retrieval questions · 11 March 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 23
Answer: 47 + 23 = 70 -
2. Algebra Substitution
If x = 5, find the value of 3x + 12
Answer: 27 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 19, 3, 15, 3
Answer: 10