Keystones — Lintel
Five GCSE retrieval questions · 11 July 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 1⁄4 + 1⁄2 + 1⁄6
Answer: 11⁄12 -
2. Algebra
Solve: 9x = 27
Answer: x = 3 -
3. Geometry
Opposite = 16cm, adjacent = 20cm. Calculate the angle
Answer: 38.7° -
4. Ratio
Simplify: 24:16:24
Answer: 3:2:3 -
5. Statistics
A bag has 8 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 8⁄13