Keystones — Cornerstone
Five GCSE retrieval questions · 5 December 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 27 + 93
Answer: 27 + 93 = 120 -
2. Algebra
Find the next term: 17, 20, 23, 26, ...
Answer: 29 -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 18:6
Answer: 3:1 -
5. Statistics
Calculate the mean of: 15, 10, 22, 34, 27, 9, 41, 16
Answer: 21.8