Keystones — Cornerstone
Five GCSE retrieval questions · 19 October 2015 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 2⁄4 + 6⁄8
Answer: 5⁄4 -
2. Algebra Two-step equations
Solve: 2x + 4 = 14
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places
Answer: 8.54cm -
4. Ratio Sharing in a ratio
Share 100 in the ratio 4:1
Answer: 80 and 20 -
5. Statistics Mean
Find the mean of: 5, 7, 2, 14
Answer: 7