Keystones — Capstone
Five GCSE retrieval questions · 19 November 2023 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Factorise fully: 21x² + 15x
Answer: 3x(7x + 5) -
3. Geometry
Adjacent = 13cm, hypotenuse = 20cm. Find the angle
Answer: 49.5° -
4. Ratio
Calculate 22.2% of 435
Answer: 96.57 -
5. Statistics
A spinner has 6 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 3⁄7