Keystones — Capstone
Five GCSE retrieval questions · 17 May 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 147. What are the numbers?
Answer: 48, 49, and 50 -
2. Algebra
Simplify: 10x - 9x + 6y - y
Answer: x + 5y -
3. Geometry
Adjacent = 16cm, hypotenuse = 23cm. Find the angle
Answer: 45.9° -
4. Ratio
Calculate 39.2% of 263
Answer: 103.1 -
5. Statistics
The mean of 4 numbers is 38. If 3 of them are 30, 29, 25, what is the missing number?
Answer: 68