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Learn the rules for multiplying and dividing integers and see examples with same and different signs. Watch the Multiplying and Dividing Integer Song in class!
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Rules for Multiplying Integers • Multiply the numbers • Same signs, answer is positive. • Different signs, answer is negative. Rules for Dividing Integers • Divide the numbers • Same signs, answer is positive. • Different signs, answer is negative.
Examples with Multiplication • 5 × 4 = • 5 × -4 = • -5 × -4 = • -5 × 4 = 20 (Same signs, answer is positive) -20 (Different signs, answer is negative) 20 (Same signs, answer is positive) -20 (Different signs, answer is negative)
Examples with Division • 21 ÷ 3 = • 21 ÷ -3 = • -21 ÷ -3 = • -21 ÷ 3 = 7 (Same signs, answer is positive) -7 (Different signs, answer is negative) 7 (Same signs, answer is positive) -7 (Different signs, answer is negative)
WE WILL WATCH IN CLASS! Multiplying and Dividing Integer Song 2:20 minutes