Keystones — Cornerstone
Five GCSE retrieval questions · 2 April 2019 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 5⁄8 + 4⁄5
Answer: 57⁄40 -
2. Algebra Two-step equations
Solve: 7x + 4 = 81
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Share 100 in the ratio 1:4
Answer: 20 and 80 -
5. Statistics Mean
Calculate the mean of: 28, 5, 12, 14, 7, 5
Answer: 11.8