Keystones — Cornerstone
Five GCSE retrieval questions · 8 November 2024 · mathsvault.uk/keystones
-
1. Number Adding fractions
Calculate: 2⁄11 + 2⁄11
Answer: 4⁄11 -
2. Algebra Two-step equations
Solve: 7x + 5 = 26
Answer: x = 3 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 10cm and b = 6cm
Answer: 11.66cm -
4. Ratio Sharing in a ratio
Divide 240 in the ratio 3:4:1
Answer: 90, 120 and 30 -
5. Statistics Mean
Calculate the mean of: 19, 9, 13, 36, 39, 46, 47, 19
Answer: 28.5