Keystones — Bedrock
Five GCSE retrieval questions · 18 April 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 45
Answer: 42 + 45 = 87 -
2. Algebra Substitution
If x = 7, find the value of 2x + 9
Answer: 23 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 8, 16, 6, 11, 4
Answer: 9