Keystones — Capstone
Five GCSE retrieval questions · 15 May 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Complete the square: x² + 5.2x
Answer: (x + 2.6)² - 6.76 -
3. Geometry
Adjacent = 24cm, hypotenuse = 38cm. Find the angle
Answer: 50.8° -
4. Ratio
Calculate 30.6% of 591
Answer: 180.85 -
5. Statistics
A spinner has 3 red, 6 blue and 5 green sections. Probability of landing on red?
Answer: 3⁄14