Keystones — Cornerstone
Five GCSE retrieval questions · 6 June 2021 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 31 + ? = 188
Answer: 157 -
2. Algebra
Solve: 3x = 18
Answer: x = 6 -
3. Geometry
Opposite = 19cm, adjacent = 11cm. Calculate the angle
Answer: 59.9° -
4. Ratio
Find 54% of 418
Answer: 225.72 -
5. Statistics
Find the mean of: 19, 4, 12, 2
Answer: 9.25