Keystones — Cornerstone
Five GCSE retrieval questions · 15 June 2020 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 1⁄6 + 2⁄6
Answer: 1⁄2 -
2. Algebra Two-step equations
Solve: 7x + 14 = 84
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 5cm and 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Divide 128 in the ratio 2:3:3
Answer: 32, 48 and 48 -
5. Statistics Mean
Find the mean of: 9, 11, 16, 16, 13
Answer: 13