Topic Eight (1.8): Rounding to decimal places

Introduction Icon.png Introduction

Last lesson we studied rounding large numbers. Today we will look at rounding small numbers to a certain number of decimal places.

Consolidate Icon.png Warm Up

First complete the skill checker on page 191 on rounding to the nearest whole number.

Interact Icon.png Working through the coursebook

  • Sing along to this catchy tune, which introduces rounding to decimal places:

  • or if you prefer a more traditional video, watch:

  • Read and make notes on pages 192-193, copying out the worked examples, if you think it will help you.
  • Now see if you can answer the Band 2 questions on pages 194-195.
  • If you would like more practice, then you may want to watch the following Corbettmaths video:

Optional Activities Icon.png Plenary

You have a choice: you can end this lesson by playing a maths game, or watching a video (or even both, if you have time!)

Game-time!

Play another Beat the Clock game – today we are recapping rounding decimals:

PLAY - Rounding decimals - beat the clock 1 (MyMaths) Links to an external site. [Not available on sample course]

Video 

Decimal places aren’t just for maths lessons! This video shows what a difference they can make to sports events:

WATCH - Decimal Places: Photofinish (Twig) [Not available on sample course] 

Bridge Icon.png Support activities for this topic

The Band 1 questions on pages 193-194 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 195-196 and attempt the Band 3 questions.