2 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 = positiveNegative x negative = positive+7 x +12 = +84-6 x –5 = +30
3 Rules continued… Rule 2: Positive x negative = negative When multiplying or dividing integers whose signs are DIFFERENT, the answer will always be NEGATIVE.Positive x negative = negativeNegative x positive = negative+8 x –4 = -32-5 x +7 = -35
4 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.
5 Let’s Practice!What sign would the answer have in front of the integer???-5 x -7 = ???