Keystones — Cornerstone
Five GCSE retrieval questions · 1 November 2021 · mathsvault.uk/keystones
-
1. Number
What is 3.5 + 1.92 + 0.46?
Answer: 3.5 + 1.92 + 0.46 = 5.88 -
2. Algebra
Factorise: 24x + 15
Answer: 3(8x + 5) -
3. Geometry
Opposite = 9cm, hypotenuse = 18cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics
Find the mean of: 9, 11, 9, 16
Answer: 11.25