Keystones — Capstone
Five GCSE retrieval questions · 1 December 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
Simplify: 9x - 6x + 9y - 7y
Answer: 3x + 2y -
3. Geometry
Adjacent = 19cm, hypotenuse = 26cm. Find the angle
Answer: 43° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 4 numbers is 40. If 3 of them are 18, 32, 19, what is the missing number?
Answer: 91