Keystones — Capstone
Five GCSE retrieval questions · 30 March 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Factorise fully: 20x² + 8x
Answer: 4x(5x + 2) -
3. Geometry
Adjacent = 19cm, hypotenuse = 28cm. Find the angle
Answer: 47.3° -
4. Ratio
Calculate 31.7% of 914
Answer: 289.74 -
5. Statistics
The mean of 4 numbers is 30. If 3 of them are 44, 19, 26, what is the missing number?
Answer: 31