Keystones — Cornerstone
Five GCSE retrieval questions · 20 May 2022 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 4⁄8 + 1⁄8
Answer: 5⁄8 -
2. Algebra Two-step equations
Solve: 4x + 5 = 21
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 40cm
Answer: 41cm -
4. Ratio Sharing in a ratio
Divide 161 in the ratio 1:4:2
Answer: 23, 92 and 46 -
5. Statistics Mean
Find the mean of: 4, 15, 20, 6, 10
Answer: 11