Keystones — Cornerstone
Five GCSE retrieval questions · 2 July 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 4⁄8 + 2⁄8
Answer: 3⁄4 -
2. Algebra
Expand: 7(x + 3)
Answer: 7x + 21 -
3. Geometry
Calculate the hypotenuse when a = 4cm and b = 8cm
Answer: 8.94cm -
4. Ratio
Calculate 50% of 181
Answer: 90.5 -
5. Statistics
What is the probability of rolling a 4 on a fair die?
Answer: 1⁄6