Keystones — Cornerstone
Five GCSE retrieval questions · 28 April 2011 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 2⁄4 + 1⁄3
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 3x + 11 = 32
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 5cm. Give your answer to 2 decimal places
Answer: 6.4cm -
4. Ratio Sharing in a ratio
Divide 50 in the ratio 2:2:1
Answer: 20, 20 and 10 -
5. Statistics Mean
Find the mean of: 4, 9, 2
Answer: 5