Keystones — Lintel
Five GCSE retrieval questions · 19 March 2021 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 32 + ? = 122
Answer: 90 -
2. Algebra
Factorise fully: 25x² + 35x
Answer: 5x(5x + 7) -
3. Geometry
Opposite = 18cm, adjacent = 10cm. Calculate the angle
Answer: 60.9° -
4. Ratio
Simplify the ratio 7m:700cm
Answer: 1:100 -
5. Statistics
A spinner has 6 red, 6 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄5