Keystones — Lintel
Five GCSE retrieval questions · 25 July 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 298 + 588
Answer: 298 + 588 = 886 -
2. Algebra
Solve: x⁄6 = 2
Answer: x = 12 -
3. Geometry
Find c if a = 19cm and b = 12cm in a right triangle
Answer: 22.5cm -
4. Ratio
Find 57% of 477
Answer: 271.89 -
5. Statistics
Calculate the mean of: 49, 18, 10, 27, 30, 19, 9
Answer: 23.1