Keystones — Cornerstone
Five GCSE retrieval questions · 5 November 2012 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 4⁄5 + 2⁄7
Answer: 38⁄35 -
2. Algebra Two-step equations
Solve: 6x - 10 = 62
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 9cm and 40cm
Answer: 41cm -
4. Ratio Sharing in a ratio
Share 54 in the ratio 1:2
Answer: 18 and 36 -
5. Statistics Mean
Find the mean of: 5, 5, 14
Answer: 8