Keystones — Lintel
Five GCSE retrieval questions · 18 June 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 45 + ? = 191
Answer: 146 -
2. Algebra
Solve: 9x = 99
Answer: x = 11 -
3. Geometry
Opposite = 19cm, adjacent = 20cm. Calculate the angle
Answer: 43.5° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 4 blue and 5 green sections. Probability of landing on red?
Answer: 2⁄5