Class Clips is changing
We will be introducing the new Knowledge and Learning Beta website over the coming months. Clips for use in the classroom are now available on your phone, tablet or PC.


Alternatively, you can still browse or search by keyword or clip number on this site.

CLIP 10252

Approximation and rounding in subtraction

Approximation and rounding in subtraction
Play

Did you know?

All Class Clips content is available to watch on mobile, tablet and desktop devices on our new Knowledge & Learning BETA website.

Key Info
  • Approximation and rounding in subtraction
  • Duration: 01:36
  • How to use approximation and rounding to get rough answers for two-digit subtractions. A dance routine and song show children finding rough answers for two-digit subtractions using rounding to the nearest 10 to approximate numbers before they are added. The calculations illustrated are 41-18 and 62-29.
  • Subject:

    Maths

       Topic:

    Calculations: Subtraction

  • Keywords: approximation, rounding, rough, calculations, subtraction, minus, two digit
Ideas for use in class
  • Shows how to find rough answers to two-digit subtractions.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

BBC navigation

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.