Keystones — Capstone
Five GCSE retrieval questions · 14 January 2024 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 99. What are the numbers?
Answer: 32, 33, and 34 -
2. Algebra
Factorise fully: 9x² + 21x
Answer: 3x(3x + 7) -
3. Geometry
Adjacent = 21cm, hypotenuse = 37cm. Find the angle
Answer: 55.4° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 6 blue and 2 green sections. Probability of landing on red?
Answer: 5⁄13