Keystones — Lintel
Five GCSE retrieval questions · 10 November 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 40 + ? = 200
Answer: 160 -
2. Algebra
Solve: x⁄3 = 9
Answer: x = 27 -
3. Geometry
Calculate the distance between (2, 6) and (5, 10)
Answer: 5 -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 5⁄8