Keystones — Bedrock
Five GCSE retrieval questions · 7 November 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 98
Answer: 39 + 98 = 137 -
2. Algebra Substitution
If x = 9, find the value of 3x + 9
Answer: 36 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 20, 11, 16, 14
Answer: 15.25