Keystones — Cornerstone
Five GCSE retrieval questions · 30 April 2021 · mathsvault.uk/keystones
-
1. Number
Calculate: 32 + 34
Answer: 32 + 34 = 66 -
2. Algebra
Simplify: 3x + 8x
Answer: 11x -
3. Geometry
Calculate the hypotenuse when a = 10cm and b = 8cm
Answer: 12.81cm -
4. Ratio
Find 20% of 213
Answer: 42.6 -
5. Statistics
Calculate the mean of: 47, 37, 33, 45, 47, 12, 37, 15
Answer: 34.1