Keystones — Cornerstone
Five GCSE retrieval questions · 3 January 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 1⁄12 + 6⁄12
Answer: 7⁄12 -
2. Algebra Two-step equations
Solve: 4x - 11 = 5
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 11cm. Give your answer to 2 decimal places
Answer: 12.08cm -
4. Ratio Sharing in a ratio
Share 36 in the ratio 2:1
Answer: 24 and 12 -
5. Statistics Mean
Calculate the mean of: 11, 39, 35, 20, 11, 43, 6. Give your answer to 2 decimal places
Answer: 23.57