Keystones — Bedrock
Five GCSE retrieval questions · 1 September 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 21
Answer: 27 + 21 = 48 -
2. Algebra Substitution
If x = 3, find the value of 3x + 8
Answer: 17 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 4, 15, 20
Answer: 13