Keystones — Cornerstone
Five GCSE retrieval questions · 1 October 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 1⁄6 + 6⁄7
Answer: 43⁄42 -
2. Algebra Two-step equations
Solve: 2x - 6 = 16
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 15cm and 36cm
Answer: 39cm -
4. Ratio Sharing in a ratio
Divide 85 in the ratio 2:2:1
Answer: 34, 34 and 17 -
5. Statistics Mean
Find the mean of: 6, 10, 2
Answer: 6