Keystones — Cornerstone
Five GCSE retrieval questions · 26 July 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 2⁄11 + 6⁄11
Answer: 8⁄11 -
2. Algebra Two-step equations
Solve: 5x + 14 = 34
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 12cm and b = 9cm
Answer: 15cm -
4. Ratio Sharing in a ratio
Share 30 in the ratio 1:2
Answer: 10 and 20 -
5. Statistics Mean
Calculate the mean of: 30, 35, 41, 28, 46, 46, 27, 19
Answer: 34