Keystones — Lintel
Five GCSE retrieval questions · 24 October 2022 · mathsvault.uk/keystones
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1. Number
Simplify: x7 × x2
Answer: x9 -
2. Algebra
Solve: x⁄3 = 8
Answer: x = 24 -
3. Geometry
Adjacent = 18cm, hypotenuse = 28cm. Find the angle
Answer: 50° -
4. Ratio
Simplify: 4:10:8
Answer: 2:5:4 -
5. Statistics
A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 3⁄10