Keystones — Lintel
Five GCSE retrieval questions · 23 August 2024 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 78 + ? = 166
Answer: 88 -
2. Algebra
Factorise fully: 12x² + 12x
Answer: 3x(4x + 4) -
3. Geometry
Calculate the hypotenuse when a = 10cm and b = 9cm
Answer: 13.45cm -
4. Ratio
Calculate 35.4% of 540
Answer: 191.16 -
5. Statistics
A bag has 6 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 2⁄3