Topic Two (1.2): Adding and Subtracting negative numbers

Introduction Icon.png Introduction

Last lesson we looked at ordering directed (negative) numbers. Today we look at how we add and subtract these.

Consolidate Icon.png Warm Up

First complete the skill checker on page 97.

Interact Icon.png Working through your course book

  • Start by watching this video, which introduces the topic nicely:

WATCH – Directed Numbers - Adding and Subtracting (MathsWatch) Links to an external site.

  • Read and make notes on pages 98-99, copying out the worked examples.
  • Now see if you can answer the Band 2 questions on pages 100-102.
  • If you would like more practice, then work through these lessons on the MyMaths website, slides 1-5 only:

EXPLORE – Negative numbers 2 (MyMaths) (slides 1-5 only) Links to an external site.

  • You may also want to watch the following Corbettmaths video:

Optional Activities Icon.png Plenary

This Tug of War game is good fun, and uses the skills from today’s lesson:

PLAY – Tug of War (MyMaths) Links to an external site.

Bridge Icon.png Support activities for this topic

The Band 1 questions on pages 99-100 will help build your skills on this topic.

Stretch Icon.png Extension activities for this topic

If you would like more of a challenge on this topic, go to pages 102-103 and attempt the Band 3 questions.