Keystones — Cornerstone
Five GCSE retrieval questions · 19 June 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 62 + ? = 199
Answer: 137 -
2. Algebra
Solve: x + 3 = 21
Answer: x = 18 -
3. Geometry
Opposite = 14cm, hypotenuse = 16.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Find 60% of 73
Answer: 43.8 -
5. Statistics
Calculate the mean of: 46, 9, 33, 28, 9, 27
Answer: 25.3