Keystones — Bedrock
Five GCSE retrieval questions · 1 October 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: -10 + (-2)
Answer: -12 -
2. Algebra
Solve: x + 4 = 19
Answer: x = 15 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 14:8
Answer: 7:4 -
5. Statistics
Find the mean of: 3, 16, 4
Answer: 7.6666666666667