Keystones — Lintel
Five GCSE retrieval questions · 8 July 2020 · mathsvault.uk/keystones
-
1. Number Converting to standard form
0.067
Answer: 6.7 × 10-2 -
2. Algebra Factorising monic quadratics
Factorise: x² - 11x + 28
Answer: (x - 4)(x - 7) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 38cm, angle = 35°. Find adjacent side
Answer: 31.cm -
4. Ratio Mixed ratio problems
£300.00 is shared between A and B in the ratio 1:2. How much does A receive?
Answer: £100.00 -
5. Statistics Mean
The mean of 4 numbers is 35. If 3 of them are 43, 49, 46, what is the missing number?
Answer: 2