Keystones — Capstone
Five GCSE retrieval questions · 31 December 2022 · 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
Complete the square: x² + 5x
Answer: (x + 2.5)² - 6.25 -
3. Geometry
Adjacent = 26cm, hypotenuse = 45cm. Find the angle
Answer: 54.7° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 3 blue and 4 green sections. Probability of landing on red?
Answer: 5⁄12