1. Lesson 1.7 Multiplying and Dividing Integers Essential Question: How do we multiply integers? How do we divide integers?

2. Multiplying Integers The product of two integers with the same sign is positive. The product of two integers with different sign is negative. The product of an integer and zero is zero

3. Multiplying Integers (-3)(-12)= (-7)(9) (-24)(0)

4. Multiplying Integers You own shares of stock in a computer company and an utility company. The table shows the number of shares of each type of stock you own and the change in the value of each share over a one year period. What is the total change in the value of your shares in your stock? StockSharesChange in Value of One Share Computer200Decreased $3 Utility150Increased $2

5. Dividing Integers The quotient of two integers with the same sign is positive. The quotient of two integers with different signs is negative The quotient of zero and any nonzero integer is zero.

6. Dividing Integers (-48)÷(-6)= 56÷(-8)= 0÷9=

7. Finding the Mean MonthJuneJulyAugustSeptemberOctoberNovember Temperature °F -42-59-57-47-40-19