Thursday, Dec. 4 - Subtracting Integers

OK - So this week we are going to be looking at subtracting integers. You can also use a number line as a starting point to get a hands-on look at the addition and subtraction of integers. You can practice the problems on a number line. I've included a link for a number line. There's also an interactive number line that you can click on and use lower on the page.

I've also included the video you watched yesterday. I know it seems redundant, but watch it again. This is a good lesson on integers.

The worksheets below will be a review of adding and subtracting integers and an answer key.

Here are some basic rules:

To subtract integers, change the sign on the integer that is to be subtracted.

• If both signs are positive, the answer will be positive.
  Example: 14 - (-6) = 14 + 6 = 20
   
• If both signs are negative, the answer will be negative.
  Example: -14 - (+6) = -14 - 6 = -20
   
• If the signs are different subtract the smaller absolute value from the larger absolute value. The sign will be the sign of the integer that produced the larger absolute value.
  Example: 14 - (+6) = 14 - 6 = 8
  Example: -14 - (-6) = -14 + 6 = -8