Keystones — Cornerstone
Five GCSE retrieval questions · 21 August 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 67 + ? = 103
Answer: 36 -
2. Algebra
Factorise: 2x² + 3x
Answer: x(2x + 3) -
3. Geometry
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics
A bag has 5 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 5⁄11