Keystones — Lintel
Five GCSE retrieval questions · 14 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 846 + 899
Answer: 846 + 899 = 1745 -
2. Algebra
For y = x³ + 8, calculate y when x = 4
Answer: y = 72 -
3. Geometry
Find c if a = 18cm and b = 10cm in a right triangle
Answer: 20.6cm -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄11