Subtracting Integers

Subtracting Integers To subtract integers, add the opposite of the second integer. Examples:8 − 3 = = 5 9 − (-5) = = − 3 = = − (-2) = = − (-4) = = 0

Let’s learn to subtract integers!

Subtracting Integers To subtract integers, add the opposite of the second integer. Examples:8 − 3 = 5 9 − (-5) = − 3 = − (-2) = − (-4) = 0

Now let’s talk about 0. Zero subtracted from any integer is that integer. Example: 9 − 0 = − 0 = − = − 0 = -6

Subtracting Integer Rules To subtract you will add the opposite of the second integer. To subtract you will add the opposite of the second integer. Same signs – add and keep that sign Same signs – add and keep that sign ex: 5 – -8 = = 13 ex: -5 – 8 = = - 13 Different signs – subtract and use the larger Different signs – subtract and use the larger number’s sign number’s sign ex: -8 – -5 = = - 3 ex: 8 – 3 = = 5

Now let’s practice = = = = = = = = = =

Integers as points on a number line. Each integer has a point on a number line corresponding to it. The integer is the coordinate of that point. The point corresponding to 0 is called the origin. origin

Each integer has an opposite integer. Points corresponding to opposite integers are the same distance from the origin. Points A and B are the same distance from zero. ¯ 5 and + 5 are opposites AB

Points C and D are the same distance from zero. ¯ 12 and + 12 are opposites CD 0 doesn’t have an opposite E

If subtraction is the operation sign that you get, Then the second number’s sign turns to its opposite. Once the sign has been adjusted and the problems been revised, Look at the signs on the numbers use the rules we’ve already tried. Chorus: Same-Add Different-Subtract Take the sign of the bigger number. (Repeat) Add the Opposite Keep-Change-Change

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