Keystones — Cornerstone
Five GCSE retrieval questions · 2 August 2021 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 2⁄6 + 2⁄3
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 5x + 14 = 39
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 5cm and 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Share 45 in the ratio 2:3
Answer: 18 and 27 -
5. Statistics Mean
Calculate the mean of: 17, 13, 16, 28, 18, 13
Answer: 17.5