Keystones — Cornerstone
Five GCSE retrieval questions · 28 August 2024 · mathsvault.uk/keystones
-
1. Number
Calculate: 25 + 23
Answer: 25 + 23 = 48 -
2. Algebra
Expand: 5(x + 7)
Answer: 5x + 35 -
3. Geometry
Opposite = 11cm, adjacent = 12cm. Calculate the angle
Answer: 42.5° -
4. Ratio
Find 84% of 404
Answer: 339.36 -
5. Statistics
A bag has 5 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 5⁄12