Keystones — Cornerstone
Five GCSE retrieval questions · 13 July 2018 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 2⁄10 + 1⁄10
Answer: 3⁄10 -
2. Algebra Two-step equations
Solve: 6x + 3 = 45
Answer: x = 7 -
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 65 in the ratio 2:3
Answer: 26 and 39 -
5. Statistics Mean
Find the mean of: 19, 9, 19, 15, 18
Answer: 16