Keystones — Bedrock
Five GCSE retrieval questions · 28 May 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 21
Answer: 15 + 21 = 36 -
2. Algebra Substitution
If x = 9, find the value of 3x + 12
Answer: 39 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 3, 13, 14, 20, 6
Answer: 11.2