Keystones — Lintel
Five GCSE retrieval questions · 4 May 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 82 + ? = 176
Answer: 94 -
2. Algebra
Solve: x⁄4 = 7
Answer: x = 28 -
3. Geometry
Find the perimeter: hypotenuse = 24cm, one side = 18cm
Answer: 57.9cm -
4. Ratio
Find 22% of 466
Answer: 102.52 -
5. Statistics
A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2