Keystones — Lintel
Five GCSE retrieval questions · 4 April 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 305 + 686
Answer: 305 + 686 = 991 -
2. Algebra
Solve: 2x = 18
Answer: x = 9 -
3. Geometry
Find the distance between (-2, 1) and (10, 11)
Answer: 15.62 -
4. Ratio
Simplify the ratio 6m:600cm
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