Keystones — Cornerstone
Five GCSE retrieval questions · 5 June 2013 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 3⁄6 + 2⁄6
Answer: 5⁄6 -
2. Algebra Two-step equations
Solve: 7x + 11 = 60
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places
Answer: 8.94cm -
4. Ratio Sharing in a ratio
Share 100 in the ratio 2:3
Answer: 40 and 60 -
5. Statistics Mean
Calculate the mean of: 35, 19, 45, 27, 46, 14, 26, 35. Give your answer to 2 decimal places
Answer: 30.88