Keystones — Cornerstone
Five GCSE retrieval questions · 2 June 2021 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 2⁄6 + 1⁄6
Answer: 1⁄2 -
2. Algebra Two-step equations
Solve: 5x - 14 = 46
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 6cm and 8cm
Answer: 10cm -
4. Ratio Sharing in a ratio
Divide 300 in the ratio 2:2:1
Answer: 120, 120 and 60 -
5. Statistics Mean
Calculate the mean of: 22, 46, 23, 17, 5, 28
Answer: 23.5