Keystones — Cornerstone
Five GCSE retrieval questions · 18 September 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 93 + 66
Answer: 93 + 66 = 159 -
2. Algebra
For y = x³ + 15, calculate y when x = 2
Answer: y = 23 -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 10% of 23
Answer: 2.3 -
5. Statistics
Calculate the range of: 60, 111, 74, 96, 47, 58
Answer: 64