Keystones — Lintel
Five GCSE retrieval questions · 23 August 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 46 + ? = 163
Answer: 117 -
2. Algebra
Solve: 8x = 32
Answer: x = 4 -
3. Geometry
Calculate the hypotenuse when a = 3cm and b = 4cm
Answer: 5cm -
4. Ratio
Calculate 47.1% of 245
Answer: 115.4 -
5. Statistics
A bag has 6 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 2⁄3