Keystones — Lintel
Five GCSE retrieval questions · 12 July 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 959 + 892
Answer: 959 + 892 = 1851 -
2. Algebra
Solve: 3x = 27
Answer: x = 9 -
3. Geometry
Adjacent = 17cm, hypotenuse = 23cm. Find the angle
Answer: 42.3° -
4. Ratio
Find 71% of 310
Answer: 220.1 -
5. Statistics
A bag has 7 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2