Keystones — Capstone
Five GCSE retrieval questions · 8 April 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Simplify: 11x - 3x + 10y - 5y
Answer: 8x + 5y -
3. Geometry
Adjacent = 22cm, hypotenuse = 28cm. Find the angle
Answer: 38.2° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
The mean of 5 numbers is 31. If 4 of them are 36, 40, 22, 45, what is the missing number?
Answer: 12