Keystones — Cornerstone
Five GCSE retrieval questions · 4 July 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 3⁄4 + 2⁄8
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 8x - 11 = 37
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 9cm and b = 5cm. Give your answer to 2 decimal places
Answer: 10.3cm -
4. Ratio Sharing in a ratio
Share 91 in the ratio 4:3
Answer: 52 and 39 -
5. Statistics Mean
Calculate the mean of: 50, 13, 28, 46, 42, 49, 20. Give your answer to 2 decimal places
Answer: 35.43