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CAIE IGCSE Mathematics Extended E1.13.1 Calculate a Given Percentage of a Quantity Questions

Work through Extended CAIE IGCSE Mathematics percentage questions by multiplying an amount by the stated percentage and checking units.

Syllabus
2028–2030
Course
Mathematics 0580
Level
Extended

Exam points

  • calculate a stated percentage of an amount using a percentage multiplier
  • apply percentage calculations in financial, tax and measurement contexts
  • round percentage results to the requested precision and retain units

CAIE IGCSE Mathematics Extended E1.13.1 Calculate a Given Percentage of a Quantity Questions question 1

[Maximum number: 2]

The Earth has a surface area of approximately 510100000 km2510100000 \mathrm{~km}^{2}.

Water covers 70.8% of the Earth's surface.

Work out the area of the Earth's surface covered by water.
km2\mathrm{km}^{2}

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