Keystones — Cornerstone
Five GCSE retrieval questions · 15 April 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 65 + ? = 175
Answer: 110 -
2. Algebra
Collect like terms: 3x + 8y + 6x + 3y
Answer: 9x + 11y -
3. Geometry
Opposite = 14cm, adjacent = 8cm. Calculate the angle
Answer: 60.3° -
4. Ratio
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics
Find the mean of: 4, 5, 18
Answer: 9