## Multiplication and Division

Multiplication and Division
• Currently 4.0/5 Stars.
7750 views, 2 ratings - 00:08:18
Taught by muchomath

### Meets NCTM Standards:

Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.
Multiplication and division are explained using a number line. Also, many examples of multiplying and dividing fractions with negative signs. Also, multiplying and dividing by 0 is discussed.

• How do you multiply and divide integers using a number line?
• Why does a negative number times a negative number equal a positive number?
• What does any number times 0 equal?
• What are reciprocals and what do reciprocals equal when they are multiplied?
• How do you multiply fractions by canceling out common factors?
• What does -3(-5/6)(-2/3) equal?
• How do you divide fractions?
• What does 6/(5/7) equal?
• What is 0/5?
• What happens when you divide by 0?
• Why can't you divide by 0?
• What is 0 divided by 0?
This lesson explains the concept of multiplication and division using a number line. Reciprocals are revisited, fractions are multiplied and divided, and several example problems are shown for simplifying expressions with multiplication and division and using negative signs.
• Currently 4.0/5 Stars.
Reviewed by MathVids Staff on June 13, 2010.
i love it
• Currently 5.0/5 Stars.
Reviewed by squeaky78 on September 29, 2010.  