Keystones — Bedrock
Five GCSE retrieval questions · 26 March 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 30 + 21
Answer: 30 + 21 = 51 -
2. Algebra
Simplify: 3x + 2x
Answer: 5x -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 25% of 197
Answer: 49.25 -
5. Statistics
Find the mean of: 15, 14, 6, 19
Answer: 13.5