Keystones — Cornerstone
Five GCSE retrieval questions · 9 March 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 48 + ? = 126
Answer: 78 -
2. Algebra
Collect like terms: 8x + 7y + 4x + 4y
Answer: 12x + 11y -
3. Geometry
Opposite = 17cm, adjacent = 15cm. Calculate the angle
Answer: 48.6° -
4. Ratio
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics
Find the range of: 15, 18, 39, 21, 42
Answer: 27