Keystones — Bedrock
Five GCSE retrieval questions · 21 March 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 9.8 + 7.5
Answer: 9.8 + 7.5 = 17.3 -
2. Algebra
Simplify: 5x + 4x
Answer: 9x -
3. Geometry
Opposite = 6cm, hypotenuse = 8.5cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 12:32
Answer: 3:8 -
5. Statistics
Find the mean of: 20, 9, 6, 16
Answer: 12.75