Keystones — Lintel
Five GCSE retrieval questions · 3 May 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 635 + 522
Answer: 635 + 522 = 1157 -
2. Algebra
Solve: x⁄4 = 2.5
Answer: x = 10 -
3. Geometry
Calculate the hypotenuse when a = 7cm and b = 5cm
Answer: 8.6cm -
4. Ratio
Simplify: 9:9:15
Answer: 3:3:5 -
5. Statistics
A bag has 3 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 3⁄8