Multiplying and Dividing Integers Steps: Multiply or divide the regular way Figure out the sign of the answer Rule: When multiplying or dividing two integers 
with the same sign the answer is always 
positive.  (+)(+)=(+) (-)(-)=(+)

1.) (4)(3) = 2.) -6 X (-7) = 3.) -9 (-2) = 4.) -12 X (-5)= 5.) -144 (-12) = 6.) -54 (-9)

When multiplying or dividing two integers 
with different signs the answer is always 
negative 7.) -11(4) = 8.) 8 X (-6) = 9.) -9 X 7 =  10.) 6 X (-7) = 11.) 64 (-8) =  12.) -81 9

Trick: 13.) (-9)(3) =  14.) -8 X (-7) = 15.) -9(7) =  16.) -36 9= 17.) -56 (-8) =  18.) -49 (-7)

19. ) Suppose the temperature outside is dropping 3 degrees each hour 19.) Suppose the temperature outside is dropping 3 degrees 

each hour. How much will the temperature change in 8 hours? 20.) The temperature outside dropped a total of 35 degrees over the past seven days. Find the average change in temperature each day.

When multiplying more than two integers 
count the number of negative integers. -if the number of negative integers is 
even the answer is positive -if the number of negative integers is odd 
the product is negative 19.) (-2)(2)(-2)= 20.) (-1)(-3)(-2)

3.) 81 (-9) = 4.) (-1)(-4)(2)= 5.) -3 X 14 = 6.) -12 X (-8)= Demonstrate Understanding: 1.) -49 (-7) =  2.) 12 (-6)= 3.) 81 (-9) =  4.) (-1)(-4)(2)= 5.) -3 X 14 =  6.) -12 X (-8)= 7.) -99 (-11) =  8.) 35 -7 = 9.) (-1)(-2)(-3)(4)= 10.)36 (-6) 2=

Solve each word problem Solve each word problem. Be sure to write a math problem and solve your answer. 11.) Mrs. Johnson lost on an investment at a rate of $4 per day. Describe the change in her investment after 7 days. 12.) During a 5-day workweek, the stock market decreased by 65 points. Find the average daily change in the market for the week.