Keystones — Cornerstone
Five GCSE retrieval questions · 31 May 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 1⁄5 + 2⁄7
Answer: 17⁄35 -
2. Algebra Two-step equations
Solve: 4x + 9 = 25
Answer: x = 4 -
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 75 in the ratio 1:4
Answer: 15 and 60 -
5. Statistics Mean
Find the mean of: 16, 14, 11, 3, 1
Answer: 9