Keystones — Capstone
Five GCSE retrieval questions · 22 May 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 129. What are the numbers?
Answer: 42, 43, and 44 -
2. Algebra
Simplify: 8x - 4x + 8y - 4y
Answer: 4x + 4y -
3. Geometry
Adjacent = 23cm, hypotenuse = 36cm. Find the angle
Answer: 50.3° -
4. Ratio
Calculate 48.4% of 212
Answer: 102.61 -
5. Statistics
The mean of 6 numbers is 30. If 5 of them are 35, 24, 33, 48, 41, what is the missing number?
Answer: -1