Keystones — Cornerstone
Five GCSE retrieval questions · 4 June 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 4⁄6 + 1⁄4
Answer: 11⁄12 -
2. Algebra Two-step equations
Solve: 4x + 15 = 31
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 14cm. Give your answer to 2 decimal places
Answer: 16.12cm -
4. Ratio Sharing in a ratio
Divide 196 in the ratio 2:2:3
Answer: 56, 56 and 84 -
5. Statistics Mean
Calculate the mean of: 33, 42, 17, 32, 38, 48, 33, 10. Give your answer to 2 decimal places
Answer: 31.63