Keystones — Cornerstone
Five GCSE retrieval questions · 15 March 2018 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 4⁄10 + 5⁄10
Answer: 9⁄10 -
2. Algebra Two-step equations
Solve: 6x + 3 = 57
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 15cm
Answer: 17cm -
4. Ratio Sharing in a ratio
Share 56 in the ratio 1:3
Answer: 14 and 42 -
5. Statistics Mean
Calculate the mean of: 32, 18, 27, 9, 15, 45, 38, 38
Answer: 27.8