Keystones — Lintel
Five GCSE retrieval questions · 30 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 506
Answer: 1503 -
2. Algebra
Solve: x⁄3 = 11
Answer: x = 33 -
3. Geometry
Adjacent = 30cm, hypotenuse = 40cm. Find the angle
Answer: 41.4° -
4. Ratio
Find 78% of 172
Answer: 134.16 -
5. Statistics
A bag has 8 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 8⁄13