Keystones — Bedrock
Five GCSE retrieval questions · 21 August 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 79 + 80
Answer: 79 + 80 = 159 -
2. Algebra Substitution
If x = 9, find the value of 4x + 5
Answer: 41 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 35:30
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 11, 10, 7, 18, 4
Answer: 10