Keystones — Cornerstone
Five GCSE retrieval questions · 8 December 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 75 + 39
Answer: 75 + 39 = 114 -
2. Algebra
For y = x³, find y when x = 5
Answer: y = 125 -
3. Geometry
Opposite = 9cm, adjacent = 15cm. Calculate the angle
Answer: 31° -
4. Ratio
Find 67% of 194
Answer: 129.98 -
5. Statistics
A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 3⁄10