Keystones — Cornerstone
Five GCSE retrieval questions · 10 December 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 156 + 499
Answer: 156 + 499 = 655 -
2. Algebra
Simplify: 2x + 4x
Answer: 6x -
3. Geometry
Find the area of a circle with radius 9cm
Answer: 254.47cm² -
4. Ratio
Calculate 25% of 126
Answer: 31.5 -
5. Statistics
Calculate the mean of: 23, 47, 6, 17, 41, 47, 16
Answer: 28.1