Keystones — Cornerstone
Five GCSE retrieval questions · 13 July 2019 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 1⁄8 + 2⁄7
Answer: 23⁄56 -
2. Algebra Two-step equations
Solve: 5x + 12 = 37
Answer: x = 5 -
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 65 in the ratio 2:3
Answer: 26 and 39 -
5. Statistics Mean
Find the mean of: 18, 12, 7
Answer: 12.333333333333