Keystones — Capstone
Five GCSE retrieval questions · 20 September 2021 · 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: 12x - 10x + 5y - 2y
Answer: 2x + 3y -
3. Geometry
Adjacent = 19cm, hypotenuse = 28cm. Find the angle
Answer: 47.3° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 29. If 5 of them are 39, 40, 19, 23, 45, what is the missing number?
Answer: 8