Keystones — Cornerstone
Five GCSE retrieval questions · 14 July 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 39 + ? = 153
Answer: 114 -
2. Algebra
Simplify: 2x + 5x
Answer: 7x -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics
Find the range of: 15, 36, 22, 8, 38
Answer: 30