Foundation November 2019 Paper 1 Q17

OCRFoundationCurrent spec8 marksStandard Form

17 The table below shows the area, in square kilometres (km\(^2\)), of some countries.

(a) Write the area of Sweden as an ordinary number. [1]

(b) Which of the above countries has the smallest area? [1]

The area of Australia is approximately three times larger than the area of Luxembourg.

Is she correct?
Show how you decide.

Alexis is .................. because .................. [2]

(d) Work out the total area of Russia and Australia.
Give your answer in standard form, correct to 2 significant figures. [4]

Answer	Marks	Part marks and guidance
450 000	1

Answer	Marks	Part marks and guidance
Singapore	1

Mark scheme (c)

Answer	Marks	Part marks and guidance
Incorrect it is 3000 or 2969 to 2970 times bigger or Incorrect 769 0000 is 3000 or 2969 to 2970 times bigger than 2590 oe or Incorrect, \(3 \times 10^3\) or 3000 times larger or Incorrect and evaluates Luxembourg’s area × 3 or Australia’s area ÷ 3 with comment comparing the values	2	M1 for \(\dfrac{7.69 \times 10^6}{2.59 \times 10^3}\) oe or M1 for \((2.59 \times 10^3) \times 3 = 7.77[0] \times 10^3\) or 2590 × 3 = 7770 or \((7.69 \times 10^6) \div 3 = 2.563333[3...] \times 10^6\) or 7 690 000 ÷ 3 = 2563333[.3...] or M1 for \(10^3\) or 1000 times larger	Allow equivalent e.g wrong 7690000 ÷ 2590 = 2969.11 Figures must be in the same form for comparison, may be on the table

Mark scheme (d)

Answer	Marks	Part marks and guidance
\(2.5 \times 10^{7}\)	4	B3 for 25 000 000 or \(2.5[0..] \times 10^7\) or \(2.4[7..] \times 10^7\) or \(2.48 \times 10^7\) or B2 for 24790 000 or \(24.79 \times 10^6\) oe or M1 for \(1.71 \times 10^7 + 7.69 \times 10^6\) oe implied by figs 2479 If 0 or 1 scored SC1 for their value rounded to 2 sf	The unrounded value must be seen