Keystones — Lintel
Five GCSE retrieval questions · 5 October 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 990 + 650
Answer: 1640 -
2. Algebra
Solve: 6x = 78
Answer: x = 13 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 7cm and 6cm
Answer: 21cm² -
4. Ratio
Find 17% of 217
Answer: 36.89 -
5. Statistics
Calculate the mean of: 10, 9, 8, 10, 48, 41
Answer: 21