Keystones — Bedrock
Five GCSE retrieval questions · 7 August 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 21
Answer: 21 + 21 = 42 -
2. Algebra Substitution
If x = 8, find the value of 3x + 6
Answer: 30 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:10
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 9, 3, 14, 6
Answer: 8