Keystones — Bedrock
Five GCSE retrieval questions · 1 December 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 17
Answer: 31 + 17 = 48 -
2. Algebra Substitution
If x = 2, find the value of 8x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:35
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 11, 19, 10, 13, 10
Answer: 12.6