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Multiply/Divide integers Absent 10/15,16

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Example 1 What is the solution 12(-3) (-3) = = Solution How many negative signs are in this division problem? 1 neg. sign Odd number of neg. signs answer is Neg. Can we use order of operations in this problem? Yes or No What is the first thing we do in the numerator? We multiply the 12 and -3. What is the second thing we do in the numerator? We add -36 and 4. What is the next step after we have solved the numerator and have 1 factor? Re-write the problem using fraction sign. What is the integer rule? A neg. sign divided by a pos. sign the answer is neg. -8-8

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Example 2 Use the following expression to create an equation -2 ( ) = -4n (2n + -4) = -4n + 16 Solution Lets think of backwards distributive. Since we can pull out a -2 what goes inside the parenthesis? Be careful of your signs You put a 2n in the front and a plus -4 in the back.

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3. Sarah plays tennis for 1 hour, soccer for 3 hours, and plays golf for2 hours. What is the total amount of calories she burns? A)-375 CalB) -545 Cal C)-1250 CalD) Cal Calories consumed or burned Food or Exercise Calories Apple125 Pepperoni pizza (slice) 181 Hamburger425 Tennis (1hr) -325 Soccer (1 hr) -450 Golf(1 hr) -175

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4. What is the caloric impact of 2 hours of playing soccer? A) -477 CalB) -583 Cal C) -479 CalD) -900 Cal 5. What is the caloric impact of eating a hamburger and then playing Golf for 3 hours? A)220 CalB) -100 Cal C)-190 CalD) -220 Cal Food or Exercise Calories Apple125 Pepperoni pizza (slice) 181 Hamburger425 Tennis (1hr) -325 Soccer (1 hr) -450 Golf (1 hr) -175

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