Keystones — Cornerstone
Five GCSE retrieval questions · 10 August 2017 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 3⁄4 + 3⁄7
Answer: 33⁄28 -
2. Algebra Two-step equations
Solve: 5x + 7 = 62
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 5cm. Give your answer to 2 decimal places
Answer: 6.4cm -
4. Ratio Sharing in a ratio
Share 84 in the ratio 2:1
Answer: 56 and 28 -
5. Statistics Mean
Find the mean of: 10, 18, 2
Answer: 10