Keystones — Cornerstone
Five GCSE retrieval questions · 3 June 2011 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 1⁄4 + 3⁄5
Answer: 17⁄20 -
2. Algebra Two-step equations
Solve: 4x - 11 = 5
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 13cm. Give your answer to 2 decimal places
Answer: 17.03cm -
4. Ratio Sharing in a ratio
Share 80 in the ratio 4:1
Answer: 64 and 16 -
5. Statistics Mean
Find the mean of: 1, 7, 7
Answer: 5