Keystones — Cornerstone
Five GCSE retrieval questions · 22 September 2019 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 2⁄5 + 4⁄6
Answer: 16⁄15 -
2. Algebra Two-step equations
Solve: 2x - 13 = -3
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 12cm
Answer: 13.42cm -
4. Ratio Sharing in a ratio
Share 60 in the ratio 2:3
Answer: 24 and 36 -
5. Statistics Mean
Find the mean of: 18, 13, 4, 6
Answer: 10.25