Keystones — Lintel
Five GCSE retrieval questions · 6 September 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 47 + ? = 159
Answer: 112 -
2. Algebra
Solve: 3x = 21
Answer: x = 7 -
3. Geometry
Opposite = 12cm, adjacent = 11cm. Calculate the angle
Answer: 47.5° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 4 blue and 3 green sections. Probability of landing on red?
Answer: 6⁄13