Keystones — Lintel
Five GCSE retrieval questions · 7 June 2023 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 120. What are the numbers?
Answer: 39, 40, and 41 -
2. Algebra
Factorise fully: 20x² + 24x
Answer: 4x(5x + 6) -
3. Geometry
Adjacent = 24cm, hypotenuse = 44cm. Find the angle
Answer: 56.9° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 47, 30, 21, 11, 20, 14, 35
Answer: 25.4