Keystones — Cornerstone
Five GCSE retrieval questions · 6 May 2016 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 4⁄5 + 6⁄7
Answer: 58⁄35 -
2. Algebra Two-step equations
Solve: 8x - 17 = 55
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 15cm and 36cm
Answer: 39cm -
4. Ratio Sharing in a ratio
Share 56 in the ratio 4:3
Answer: 32 and 24 -
5. Statistics Mean
Find the mean of: 20, 10, 2, 13, 15
Answer: 12