Keystones — Bedrock
Five GCSE retrieval questions · 20 February 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 42
Answer: 20 + 42 = 62 -
2. Algebra Substitution
If x = 4, find the value of 4x + 11
Answer: 27 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 9, 8, 16, 11, 6
Answer: 10