Keystones — Capstone
Five GCSE retrieval questions · 1 May 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Adjacent = 14cm, hypotenuse = 25cm. Find the angle
Answer: 55.9° -
4. Ratio
Calculate 19.8% of 412
Answer: 81.58 -
5. Statistics
The mean of 6 numbers is 35. If 5 of them are 33, 15, 22, 19, 42, what is the missing number?
Answer: 79