Keystones — Cornerstone
Five GCSE retrieval questions · 19 December 2022 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 80 + ? = 170
Answer: 90 -
2. Algebra
Expand: 6(6x + 8)
Answer: 36x + 48 -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 25:15
Answer: 5:3 -
5. Statistics
Find the range of: 27, 6, 7, 21, 15
Answer: 21