Keystones — Capstone
Five GCSE retrieval questions · 2 April 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 111. What are the numbers?
Answer: 36, 37, and 38 -
2. Algebra
Expand: 8(5x - 7)
Answer: 40x - 56 -
3. Geometry
Find c if a = 17cm and b = 14cm in a right triangle
Answer: 22cm -
4. Ratio
Calculate 42.8% of 785
Answer: 335.98 -
5. Statistics
The mean of 4 numbers is 33. If 3 of them are 44, 17, 22, what is the missing number?
Answer: 49