Integer Subtraction

Integers-Subtracting Integers

By Seth Wade and Micheal Evans Blackduck

How Do You Subtract Integers With The Same Sign?

When subtracting integers with the same signs, you need to use these rules to help you out.

-Determine if both of the integers are positive or negative

If positive, take the second number and subtract it by the first number.

-If both negative, then turn the subtraction and second number's interger into addtion. Then you can add onto the negative number.

Examples, -5 - (-6), the answer is obviously +1, since if you turn the subtraction and the negative into positive, it will look like this. -5 + 6. Then you can add the 6 onto -5, which equals positive 1.

How Do You Subtract Integers With Different Signs?

When subtracting integers, you need to follow these rules so you can do them properly.

-Keep the first integer, and don't do anything with that integer.

-Change the second integer depending on if it is positive or negative. If the second integer is a positive, then you turn the subtraction and the sign into deduction (subtraction) (-2 - (+5) = -7) But if the first integer is positive and the second integer is negative. Then you turn the sign and the integer into a positive

(4 - (-6) = 10).

Multiple Choice

What Is The Answer To This Question?

-5- (-5)

• -0

• 0

• -10

• 10

• PICK ME! I AM THE ANSWER!

Multiple Choice

If Justin has 45 beach balls and Micheal grabs -26 beach balls? How many beach balls are left over

• -19

• 71

• 19

• 56

• IF YOU PICK ME! I WILL BUY YOU A UNLIMITED AMOUNT OF YOUR FAVORITE ICE CREAM!

Fill in the Blank

Solve This Equation

-3456 - 233345

Multiple Choice

If Denise has 567 books and Korbin took -456 books away. How many books do you have left?

• 111

• 1023

• 4567

• -1023

• YOU BETTER NOT PICK THE OTHER ANSWERS, BECAUSE IF YOU DO THERE WILL BE SERIOUS CONSEQUENCES!

Fill in the Blank

If Clayton had 1234 doughnuts, and Mitchell ate 456 doughnuts. How many doughnuts are left?

Multiple Choice

What Is The Answer To This Problem?

-563 - (-34)

• -529

• -345

• -597

• 567

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Multiple Choice

Did You Like This Presentation Today?

• Obviously YES!!!

• Not Really.

• It was so bad my eyballs would fall out!

• It was okay.