Keystones — Bedrock
Five GCSE retrieval questions · 20 December 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: -3 + (-10)
Answer: -13 -
2. Algebra
Solve: x + 13 = 17
Answer: x = 4 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics
Find the mean of: 12, 7, 6, 20
Answer: 11.25