Keystones — Cornerstone
Five GCSE retrieval questions · 24 August 2023 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 44 + ? = 135
Answer: 91 -
2. Algebra
Solve: 7x = 21
Answer: x = 3 -
3. Geometry
Find the area of a right triangle with base 4cm and height 7cm
Answer: 14cm² -
4. Ratio
Simplify: 6:4:10
Answer: 3:2:5 -
5. Statistics
Calculate the mean of: 45, 16, 22, 36, 32, 32, 43, 10
Answer: 29.5