Keystones — Cornerstone
Five GCSE retrieval questions · 25 May 2025 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 3⁄7 + 3⁄7
Answer: 6⁄7 -
2. Algebra Two-step equations
Solve: 4x + 13 = 53
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio Sharing in a ratio
Share 105 in the ratio 3:4
Answer: 45 and 60 -
5. Statistics Mean
Find the mean of: 3, 15, 19, 11, 17
Answer: 13