Keystones — Lintel
Five GCSE retrieval questions · 27 February 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 399 + 734
Answer: 399 + 734 = 1133 -
2. Algebra
Solve: 8x = 24
Answer: x = 3 -
3. Geometry
Calculate the hypotenuse when a = 5cm and b = 5cm
Answer: 7.07cm -
4. Ratio
Simplify: 20:12:12
Answer: 5:3:3 -
5. Statistics
A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 4⁄11