Keystones — Capstone
Five GCSE retrieval questions · 8 May 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 1⁄3 + 2⁄3 + 2⁄5
Answer: 7⁄5 -
2. Algebra
Simplify: 5x - 4x + 8y - 4y
Answer: x + 4y -
3. Geometry
Adjacent = 26cm, hypotenuse = 33cm. Find the angle
Answer: 38° -
4. Ratio
Calculate 49.1% of 805
Answer: 395.26 -
5. Statistics
The mean of 4 numbers is 30. If 3 of them are 26, 18, 45, what is the missing number?
Answer: 31