Keystones — Cornerstone
Five GCSE retrieval questions · 4 June 2023 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 88 + ? = 172
Answer: 84 -
2. Algebra
Factorise: 6x + 8
Answer: 2(3x + 4) -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 9:6
Answer: 3:2 -
5. Statistics
Find the range of: 24, 15, 39, 29, 12
Answer: 27