Foundation June 2021 Paper 2 Q14

EdexcelCurrent spec5 marksPercentages Using a Calculator / BIDMAS

(a) Work out 39% of 450 (2)

(b) Write one pair of brackets in this calculation so that the answer is correct.
\(9 \times 8 - 5 - 2 = 25\) (1)

(c) Work out the value of \(\quad \dfrac{\sqrt{8.9}}{6.2 - 3.5}\)
Give your answer as a decimal.
Write down all the figures on your calculator display. (2)

Mark scheme (a)

Scheme	Marks
\(0.39 \times 450\) or \(\dfrac{39}{100} \times 450\) or \(\dfrac{450}{100} \times 39\) oe eg \(3 \times 45 + 9 \times 4.5\) oe	M1
Working not required, so correct answer scores full marks (unless from obvious incorrect working) Answer: 175.5	A1
	(2)

Mark scheme (b)

Scheme	Marks
Brackets around (8 − 5)	B1
	(1)

Notes

B1: \(9 \times (8 - 5) - 2 = 25\) with no incorrect brackets,
condone eg \((9 \times (8 - 5)) - 2 = 25\) which has extra brackets that are not incorrect

Scheme	Marks
1.1049(21029)	B2
	(2)
	(5 marks)