In this video you will learn to add and subtract integers.

Follow these simple steps to add and subtract integers.

Transcript

Welcome to MooMooMath and adding and subtracting integers

Ask yourself, is the problem addition?

Yes, then are the signs the same? yes

Add the absolute value of the addends

Give the sum the sign of the addends

If the problem is addition and the signs are different then,

using the absolute values, subtract the smaller number from the greater number.

Give the the sum the sign of the number with the absolute value.

If the problem is subtraction and not addition,

change the subtraction sign to addition, change the sign of the number behind the subtraction sign to it's opposite, then add

Now follow the addition rules

Ok let's work some addition and subtraction of integers problems.

Is the problem addition? yes

Are the signs the same? yes

Add the absolute value of the two numbers, and the absolute value of 5 and 2 = 7

I next take the sign of the two numbers you adding which is negative 7

Next, is the problem addition? yes

Are the signs the same? No

I subtract the absolute value of the smaller number from the larger number.

This is the same as 7 -3

You then take the sign of the larger number.

We now have a subtraction problem

Is the problem addition? No

Is it subtraction? yes

Change the subtraction sign to addition and the sign of the number behind the addition sign

Now follow the rules of addition

Is it addition? yes

Are the signs the same? No

Subtract the absolute value of the smaller number.

We will have 6-1 and take the sign of the larger number.

Same thing again.

Is it addition?

No Change subtraction to addition, and change the sign of the number behind that.

Now, add these together 12+ 5 = 17

Because both are addition, the answer will be positive

Finally, 8 + negative 4

Is it addition? yes

Are the signs the same? no

Subtract the absolute value of the smaller number from the larger number, and take the sign of the larger number.

Hope this helps with adding and subtracting integers.

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Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"

https://www.youtube.com/watch?v=f3bsg8gaSbw

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Tagged under: integers,adding,subtracting,positive number,negative number,math,6th grade math,moomoomath

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