Keystones — Cornerstone
Five GCSE retrieval questions · 24 November 2012 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 4⁄6 + 2⁄3
Answer: 4⁄3 -
2. Algebra Two-step equations
Solve: 7x + 4 = 32
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 8cm. Give your answer to 2 decimal places
Answer: 13.6cm -
4. Ratio Sharing in a ratio
Share 50 in the ratio 4:1
Answer: 40 and 10 -
5. Statistics Mean
Find the mean of: 7, 20, 3
Answer: 10