Keystones — Capstone
Five GCSE retrieval questions · 11 July 2022 · 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
Complete the square: x² + 5.2x
Answer: (x + 2.6)² - 6.76 -
3. Geometry
Adjacent = 18cm, hypotenuse = 38cm. Find the angle
Answer: 61.7° -
4. Ratio
Calculate 11.1% of 429
Answer: 47.62 -
5. Statistics
A spinner has 6 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 3⁄7