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O-LevelMathematicsNumber4024/12 · May/June 2014 · Q103 Marks

Write 405917628 correct to three significant figures.

  1. (a)Write 405917628 correct to three significant figures.[1]
  2. (b)By writing each number correct to one significant figure, estimate the value of 41.3 9.79 × 0.765.[2]

Mark scheme

Marking points from the official mark scheme (May/June 2014). The mark or mark type is shown in brackets.

  1. [1] 406 000 000 oe
  2. [2] 5
  3. [2] B1 for two of 40, 10 and 0.8 seen

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About this question

Topic
Number, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, May/June 2014 Paper 1 Variant 2, question 10.

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