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Learning objective

Perform calculations using the four basic operations with various types of numbers, including integers, fractions, and decimals. This includes handling negative numbers, improper fractions, mixed numbers, and applying the correct order of operations with brackets. Additionally, apply these operations to real-life scenarios, such as changes in temperature.

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 MathematicsCore Number

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Quick explanation

Perform calculations using the four basic operations with various types of numbers, including integers, fractions, and decimals. This includes handling negative numbers, improper fractions, mixed numbers, and applying the correct order of operations with brackets. Additionally, apply these operations to real-life scenarios, such as changes in temperature

  • This point belongs to The four operations, especially The four operations outcomes.
  • You need to be able to perform calculations using the four basic operations with various types of numbers, including integers, fractions, and decimals. This includes handling negative numbers, improper fractions, mixed numbers, and applying the correct order of operations with brackets. Additionally, apply these operations to real-life scenarios, such as changes in temperature.
  • 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 The four operations outcomes to exam-style questions, flashcards, and revision notes for The four operations.

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Paper 2 structured question: The four operations

Paper 2Core or Extended Mathematics2 marks

Description

Temperature Change

The temperature in a city was -3°C in the morning and rose to 5°C by the afternoon. Calculate the change in temperature.

  1. a

    Calculate the change in temperature from -3°C to 5°C.

    Aim for approximately 2 distinct marking points.

    [2]
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