Keystones — Lintel
Five GCSE retrieval questions · 18 July 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 87 + ? = 191
Answer: 104 -
2. Algebra
Find the next term: 1, 3, 7, 13, ...
Answer: 21 -
3. Geometry
Opposite = 9cm, adjacent = 10cm. Calculate the angle
Answer: 42° -
4. Ratio
Simplify: 12:4:10
Answer: 6:2:5 -
5. Statistics
A spinner has 2 red, 5 blue and 6 green sections. Probability of landing on red?
Answer: 2⁄13