Keystones — Bedrock
Five GCSE retrieval questions · 20 January 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 14 + 15
Answer: 14 + 15 = 29 -
2. Algebra Substitution
If x = 4, find the value of 2x + 12
Answer: 20 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 12, 18, 15, 3
Answer: 12