Keystones — Cornerstone
Five GCSE retrieval questions · 29 July 2023 · mathsvault.uk/keystones
-
1. Number
What is √144?
Answer: 12 -
2. Algebra
Solve: x + 2 = 7
Answer: x = 5 -
3. Geometry
Opposite = 9cm, hypotenuse = 12.7cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 4:8:4
Answer: 1:2:1 -
5. Statistics
Find the mean of: 11, 11, 16, 9, 10
Answer: 11.4