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CAIE IGCSE Mathematics Extended E1.9.3 Round Answers to a Reasonable Degree of Accuracy in the Context of a Questions

Work through a multi-step quantity calculation in consistent units, keep the unrounded value until the end, then report the result to the requested nearest thousand.

Syllabus
2028–2030
Course
Mathematics 0580
Level
Extended

Exam points

  • Use consistent mass units before dividing total apple mass by the average mass of one apple.
  • Keep the more accurate total through the calculation, then round it to 59,000 when the question requests the nearest 1,000 apples.

CAIE IGCSE Mathematics Extended E1.9.3 Round Answers to a Reasonable Degree of Accuracy in the Context of a Questions question 1

[Maximum number: 3]

Malena has 450 fruit trees.
The fruit trees are in the ratio apple: pear: plum =8: 7: 3.

Each apple tree produces 48.5 kg of apples.

The apples have an average mass of 165 g each.
Calculate the total number of apples produced by the 200 trees.
Give your answer correct to the nearest 1000 apples.

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