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Multiplying and Dividing Integers. Mrs. Young EMC 1. Rules. When multiplying and dividing integers there are two rules: When multiplying or dividing integers that have the SAME sign, the answer is POSITIVE . Positive x positive = positive Negative x negative = positive +7 x +12 = +84

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## Multiplying and Dividing Integers

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**Multiplying and Dividing Integers**Mrs. Young EMC 1**Rules**• When multiplying and dividing integers there are two rules: • When multiplying or dividing integers that have the SAME sign, the answer is POSITIVE. • Positive x positive = positive • Negative x negative = positive +7 x +12 = +84 -6 x –5 = +30**Rules continued…**• Rule 2: • When multiplying or dividing integers whose signs are DIFFERENT, the answer will always be NEGATIVE. • Positive x negative = negative • Negative x positive = negative +8 x –4 = -32 -5 x +7 = -35**Let’s Sing a Song!**Multiplying Integers Song (sing to “Dead Bones” tune) Verse 1 A negative times a negative is a, (um) positive A negative times a positive is a, (um) negative A negative times a negative is a, (um) positive These are the rules for signs. Verse 2 If you have the same signs, you get a positive, But if they’re different, you get a negative, If you have the same signs, you get a positive, Yes, these are the rules for signs.**Let’s Practice!**What sign would the answer have in front of the integer??? -5 x -7 = ???**How about…**-6 x 9 = ??? What sign will be in front of the answer??**Try this one!**What sign will be in front of the answer??? -81 ÷ +9 = ???**Let’s solve some problems!**-8 x –9 =**Remember…**• When multiplying and dividing integers: Same signs = a positive Different signs = a negative

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