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Cambridge IGCSE Mathematics practice

MCQ practice - Determine the upper and lower bounds for measurements that have been rounded, such as identifying the upper bound of a length measured to the nearest metre. Additionally, calculate the upper and lower bounds for results derived from calculations that involve rounded data, including finding the upper bound of the perimeter or area of a rectangle with dimensions rounded to the nearest centimetre, and determining the lower bound of speed based on rounded distance and time values. - Limits of accuracy

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At a glance

MCQ

Type

cambridge_mcq

Style

Topic

Limits of accuracy

Exam-style question

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What is the upper bound of a length measured as 7 m to the nearest metre?.

  1. A.6.5 m
  2. B.7.5 m
  3. C.7 m
  4. D.8 m

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  • Topic focus: Limits of accuracy.
  • Question style: cambridge_mcq.
  • Reasoning demand: reasoning.
  • Check the operation, notation, units, and final answer form against the question before moving on.

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Paper 2 structured question: Limits of accuracy

Paper 2Core or Extended Mathematics2 marks

Description

Bounds of a Rectangle

A rectangle has a length of 6 m and a width of 4 m, both measured to the nearest metre.

  1. a

    Calculate the upper bound of the area of the rectangle.

    Aim for approximately 2 distinct marking points.

    [2]