1. Lesson 2 – 3, 2 – 4 Multiplying and Dividing Rational Numbers Cont… How do we apply multiplying/dividing rational numbers to solve problems and simplify expressions?

2. Multiplying and Dividing Rational Numbers What are the rules for multiplying and dividing rational numbers?????

3. Simplify Expressions You can simplify rational expressions by applying the rules of multiplication and division.

4. Examples 1.4 (-3y) – 15y = 2.13x + (-6)(4x) =

5. Examples 3.5s (-6t) = 4.6x(-7y) + (-15xy) =

6. Evaluate Expressions Examples

7. Examples m = 2.5, n = -3.2 1.mn + 5 = 2.n – 2 + 2m =

8. Simplify and Eavluate

9. Simplify and Evaluate

10. Word Problem During the 2000 holiday season, the sixth most visited online shopping site recorded 419, 000 visitors. This is eight times as many visitors as in 1999. About how many visitors did the site have in 1999?

11. Word Problem The perimeter of a square baseball diamond is 360 feet. Find the length of one of the diamond.