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Learning objective

Utilize the standard form A × 10, where n is any integer (positive or negative) and 1 ≤ A < 10. Convert numbers to and from standard form, and perform calculations using values expressed in standard form.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE MathematicsExtended NumberSupplement content

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Quick explanation

Utilize the standard form A × 10, where n is any integer (positive or negative) and 1 ≤ A < 10. Convert numbers to and from standard form, and perform calculations using values expressed in standard form

  • This point belongs to Standard form, especially Standard form outcomes.
  • You need to be able to utilize the standard form A × 10, where n is any integer (positive or negative) and 1 ≤ A < 10. Convert numbers to and from standard form, and perform calculations using values expressed in standard form.
  • The key ideas to know are Calculate, Determine, and Show.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

CalculateDetermineShowWork out

Why it matters

This objective helps connect Standard form outcomes to exam-style questions, flashcards, and revision notes for Standard form.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 2 structured question: Standard form

Paper 2Core or Extended Mathematics2 marks

Description

Calculating with Standard Form

Calculate the product of 4.5 × 10^3 and 2 × 10^2.

  1. a

    Calculate the product of 4.5 × 10^3 and 2 × 10^2.

    Aim for approximately 2 distinct marking points.

    [2]
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