Keystones — Lintel
Five GCSE retrieval questions · 19 February 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Factorise fully: 24x² + 8x
Answer: 4x(6x + 2) -
3. Geometry
Adjacent = 26cm, hypotenuse = 32cm. Find the angle
Answer: 35.7° -
4. Ratio
Calculate 14.3% of 226
Answer: 32.32 -
5. Statistics
A bag has 6 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 3⁄5