Keystones — Lintel
Five GCSE retrieval questions · 20 February 2022 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.0044
Answer: 4.4 × 10-3 -
2. Algebra Factorising monic quadratics
Factorise: x² - 9x + 18
Answer: (x - 3)(x - 6) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 30cm, angle = 58°. Find adjacent side
Answer: 15.9cm -
4. Ratio Mixed ratio problems
£304.00 is shared between A and B in the ratio 5:3. How much does A receive?
Answer: £190.00 -
5. Statistics Mean
The mean of 4 numbers is 25. If 3 of them are 26, 37, 15, what is the missing number?
Answer: 22