Keystones — Cornerstone
Five GCSE retrieval questions · 8 April 2012 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 2⁄6 + 1⁄5
Answer: 8⁄15 -
2. Algebra Two-step equations
Solve: 2x + 11 = 23
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 20cm and 21cm
Answer: 29cm -
4. Ratio Sharing in a ratio
Share 48 in the ratio 2:1
Answer: 32 and 16 -
5. Statistics Mean
Find the mean of: 21, 14, 4
Answer: 13