Keystones — Lintel
Five GCSE retrieval questions · 1 October 2021 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 78 + ? = 149
Answer: 71 -
2. Algebra
Solve: 5x = 55
Answer: x = 11 -
3. Geometry
Opposite = 18cm, adjacent = 12cm. Calculate the angle
Answer: 56.3° -
4. Ratio
Find 78% of 268
Answer: 209.04 -
5. Statistics
Calculate the mean of: 24, 21, 43, 48, 19, 22, 43, 35
Answer: 31.9