Keystones — Lintel
Five GCSE retrieval questions · 13 November 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 991 + 653
Answer: 1644 -
2. Algebra
Factorise fully: 20x² + 25x
Answer: 5x(4x + 5) -
3. Geometry
Calculate the area of a circle with diameter 15cm
Answer: 176.71cm² -
4. Ratio
Find 23% of 105
Answer: 24.15 -
5. Statistics
Find the range of: 40, -26, -5, 24, -4
Answer: 66