Keystones — Capstone
Five GCSE retrieval questions · 30 April 2023 · 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
Simplify: 12x - 11x + 7y - 2y
Answer: x + 5y -
3. Geometry
Adjacent = 20cm, hypotenuse = 29cm. Find the angle
Answer: 46.4° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 23. If 3 of them are 40, 48, 30, what is the missing number?
Answer: -26