Keystones — Bedrock
Five GCSE retrieval questions · 9 January 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 54 + 21
Answer: 54 + 21 = 75 -
2. Algebra Substitution
If x = 3, find the value of 6x + 9
Answer: 27 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:15
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 6, 5, 20, 4, 15
Answer: 10