Keystones — Cornerstone
Five GCSE retrieval questions · 13 June 2024 · mathsvault.uk/keystones
-
1. Number
Calculate: -8 + 0
Answer: -8 -
2. Algebra
Expand: 9(x + 8)
Answer: 9x + 72 -
3. Geometry
Opposite = 7cm, hypotenuse = 9.9cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 28:32
Answer: 7:8 -
5. Statistics
Calculate the mean of: 44, 10, 11, 49, 16, 40, 16
Answer: 26.6