Keystones — Cornerstone
Five GCSE retrieval questions · 29 September 2022 · mathsvault.uk/keystones
-
1. Number
Calculate: 76 + 24
Answer: 76 + 24 = 100 -
2. Algebra
Solve: 6x - 5 = 4x + 1
Answer: x = 3 -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Calculate 50% of 79
Answer: 39.5 -
5. Statistics
Find the mean of: 15, 12, 20, 9, 17
Answer: 14.6