Keystones — Bedrock
Five GCSE retrieval questions · 9 October 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 39 + 12
Answer: 39 + 12 = 51 -
2. Algebra
Solve: x + 10 = 27
Answer: x = 17 -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 103
Answer: 25.75 -
5. Statistics
Find the mean of: 19, 3, 20
Answer: 14