Keystones — Lintel
Five GCSE retrieval questions · 24 February 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 7.08 + 21.07 + 0.297
Answer: 7.08 + 21.07 + 0.297 = 28.447 -
2. Algebra
Solve: x⁄7 = 4.1428571428571
Answer: x = 29 -
3. Geometry
Adjacent = 30cm, hypotenuse = 39cm. Find the angle
Answer: 39.7° -
4. Ratio
Simplify: 24:24:20
Answer: 6:6:5 -
5. Statistics
A bag has 4 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 2⁄5