Integers Scribe #1

Integers can be shown using integer chips or on a number line.

The positive number (+) is what you have.

The negative number (-) is what you owe.

I'm going to show you how to get the answer to : (+6)+(-4) =

First you have (+6). Since (+6) is a positive number, you have 6. Next is (-4). Since (-4) is a negative number, you owe 4.

(+6) = have 6

(-4) = owe 4

Secondly, you take the integers and put them into pairs like this:

+ + + + + + 

-  -  -  -

Integers that are paired with the opposite integer are called "zero pairs". In this case, they are all not in zero pairs. So we are leftover with positive 2 (+2).

Last step is the number line.

     ------> +6

<---------------0---------------->

     <------ -4

For (+6) of the question, I placed +6 on the left side of the number line on the top half going to the right.

Then I placed (-4) on the bottom half of the number line going to the left.

Now if you did this right, your answer for (+6) + (-4) should be +2.

Here is a video on how to add and subtract integers for more further understanding.

Part 1/2

http://youtu.be/qgge1sRfOv0

Part 2/2

http://youtu.be/080RTnqUuQs