Keystones — Lintel
Five GCSE retrieval questions · 3 February 2024 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 90. What are the numbers?
Answer: 29, 30, and 31 -
2. Algebra
Factorise fully: 15x² + 6x
Answer: 3x(5x + 2) -
3. Geometry
Adjacent = 23cm, hypotenuse = 42cm. Find the angle
Answer: 56.8° -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 47, 30, 38, 50, 33, 28, 7
Answer: 33.3