Keystones — Capstone
Five GCSE retrieval questions · 23 March 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 132. What are the numbers?
Answer: 43, 44, and 45 -
2. Algebra
Simplify: 8x - 6x + 7y - 3y
Answer: 2x + 4y -
3. Geometry
Adjacent = 16cm, hypotenuse = 21cm. Find the angle
Answer: 40.4° -
4. Ratio
Calculate 22.3% of 579
Answer: 129.12 -
5. Statistics
The mean of 5 numbers is 30. If 4 of them are 47, 50, 25, 50, what is the missing number?
Answer: -22