Placing Numbers On A Number Line

Use the number line for adding and subtracting integers:

  • Add a positive integer by moving to the right on the number line
  • Add a negative integer by moving to the left on the number line
  • Subtract an integer by adding its opposite

 

Watch out! The negative of a negative is the opposite positive number. That is, for real numbers, – (- a ) = + a

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s