Keystones — Cornerstone
Five GCSE retrieval questions · 16 February 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 666 + 144
Answer: 666 + 144 = 810 -
2. Algebra
Collect like terms: 8x + 3y + 8x + 7y
Answer: 16x + 10y -
3. Geometry
Calculate the area of a circle with diameter 18cm
Answer: 254.47cm² -
4. Ratio
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics
Find the range of: 26, 27, 10, 30, 28
Answer: 20