Keystones — Cornerstone
Five GCSE retrieval questions · 28 May 2017 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 5⁄7 + 1⁄7
Answer: 6⁄7 -
2. Algebra Two-step equations
Solve: 3x + 11 = 44
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 11cm and b = 5cm. Give your answer to 2 decimal places
Answer: 12.08cm -
4. Ratio Sharing in a ratio
Share 60 in the ratio 3:1
Answer: 45 and 15 -
5. Statistics Mean
Find the mean of: 20, 7, 2, 18, 13
Answer: 12