Keystones — Cornerstone
Five GCSE retrieval questions · 1 March 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 1⁄11 + 4⁄11
Answer: 5⁄11 -
2. Algebra Two-step equations
Solve: 8x - 19 = 45
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 12cm and 35cm
Answer: 37cm -
4. Ratio Sharing in a ratio
Share 60 in the ratio 1:2
Answer: 20 and 40 -
5. Statistics Mean
Find the mean of: 5, 15, 2, 10, 3
Answer: 7