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Interactive video lesson plan for: Multiplication and Division of Integers-Positive and Negative Numbers

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In this video I will explain how to multiply and divide positive and negative integers
Transcript
Welcome to MooMooMath where we upload a new Math video everyday
In this video I would like to talk about multiplication and division of integers.
Step 1 when multiplying integers is to multiply and divide the numbers and ignore the signs
Step 2 Ask.. are the signs in the original problem the same?
Both positive or negative?
Yes the answer is positive
No the answer is negative
Let's work some multiplication and division of intergers problems.
In this video I would like to talk about multiplying and dividing integers.
Sometimes when you are multiplying a negative and negative number, or a positive and negative number you may get confused on the sign of the answer.
There are two rules to follow.
I have both of these rules in the intro
If the two signs are the same, negative and negative, and positive and positive then the answer is positive.
If the sign is a positive and negative then the sign is negative
Multiply the numbers and ignore the signs
5 times 2 = 10 and both numbers are negative the answer is positive
7 x -3
Multiply like I would normally.
7 x 3 = 21 and one sign is negative,the answer is negative
-6 divided by -2
Divide normally 6/3 = 2 and both signs are negative the answer will be positive
Let's work some more examples
12 divided by -6 equals 2
Because we have a positive and negative sign the answer is negative
The last one is 8 x -4
8 times 4 = 32
We have one negative so it is negative
Thanks for watching I hope this helps in multiplying positive and negative integers.
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Tagged under: multiplication,division,integers,positive integer,negative integers,numbers,math,moomoomath

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