Keystones — Cornerstone
Five GCSE retrieval questions · 22 March 2022 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 1⁄3 + 3⁄8
Answer: 17⁄24 -
2. Algebra Two-step equations
Solve: 8x - 16 = 24
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 15cm and 36cm
Answer: 39cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 2:3
Answer: 22 and 33 -
5. Statistics Mean
Find the mean of: 9, 13, 19, 7, 8
Answer: 11.2