Keystones — Cornerstone
Five GCSE retrieval questions · 29 April 2013 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 7⁄11 + 2⁄11
Answer: 9⁄11 -
2. Algebra Two-step equations
Solve: 6x - 5 = 43
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 5cm. Give your answer to 2 decimal places
Answer: 7.81cm -
4. Ratio Sharing in a ratio
Share 140 in the ratio 4:3
Answer: 80 and 60 -
5. Statistics Mean
Find the mean of: 12, 10, 10, 5, 13
Answer: 10