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Multiplying and Dividing Integers. My momma says that I’m confused a bout 99% of the time. Is that a lot?. Let the confusion END !. Multiplying and Dividing Integers. Can we m ake this quick? I can’t be late for my fried Twinkie eating contest. Awesome! Sparky hungry… v ery hungry!.
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Multiplying and Dividing Integers My momma says that I’m confused about 99% of the time. Is that a lot? Let the confusion END!
Multiplying and Dividing Integers Can we make this quick? I can’t be late for my fried Twinkie eating contest. Awesome! Sparky hungry… very hungry! I will try and make this as quick as possible!
Multiplying Integers + × + = + Whenever you multiply two “like” signs, the product is always positive. -×-=+ and + × - = - Whenever you multiply two “opposite” signs, the product is always negative. -× + = -
Dividing Integers + ÷ + = + Whenever you divide two “like” signs, the quotient is alwayspositive. -÷-=+ and + ÷ - = - Whenever you divide two “opposite” signs, the quotient is alwaysnegative. -÷ + = -
Let’s Put Them Side-by-Side Multiplying Dividing 5 × 5 = 25 9 ÷ 3 = 3 –3 × (–4) = 12 –10 ÷ (–2) = 5 and and 16 ÷ (–2) = –8 7 × (–3) = –21 –6 × 1 = –6 –9 ÷ 9 = –1 The rules for multiplying and dividing integers are exactly the same!
Multiplying and Dividing Integers Does this mean I won’t have to remember two sets of rules? That’s kinda like the two-for-one chili-dipped monster burrito deal over at Tangy Tacos! That’s exactly what it means! I’ll take your word for it!
Let’s Practice! Multiply or divide. Answers.
Multiplying and Dividing Integers It’s a gift! But what if I have to multiply or divide more than two integers at once? That’s an excellent question!
Multiplying and Dividing Integers Whenever you multiply and/or divide an expression with an evennumber of negative integers, your answer will always be positive. Whenever you multiply and/or divide an expression with an oddnumber of negative integers, your answer will always be negative.
Multiplying and Dividing Integers – 48 Example. 1: –2 × (–3) × 4 × (–2) = Since there are 3 negative integers, the answer must be negative. Then, multiply from left to right to find the product. 2 Ex. 2: –32 ÷ 2 ÷ 4 ÷ (–2) = 2 negative integers means a positive quotient. 70 Ex. 3: 25 ÷ (–5) × 4 ÷ (–4) × (–2) × (–7) = 4 negative integers means a positive answer. Then, multiply and divide from left to right .
Multiplying and Dividing Integers So I just count negative signs to determine the sign of my answer? Then I can forget the signs and just multiply or divide? That’s it!An even number equals a positive answer and an odd number equals a negative answer. That’s right! Let’s practice!
Multiplying and Dividing Integers Multiply and/or divide. –21 1. –6 ÷ 2 × 7 = –12 2. –4 × (–6) ÷ (–2) = 20 3. 20 ÷ (–4) × 2× 8 ÷ (–4) = 5 4. –1 × (–3) × 10 ÷ (–2) ÷ (–3) = –5 5. –6 ÷ (–3) × 7 ÷ (–7) × (–20) ÷ (– 8) =
Multiplying and DividingIntegers So, how’d you do on the practice problems, Sparky? I might have to consider myself a multiplying and dividing integers’ ace, sir! You can congratulate me after I destroy a couple dozen fried Twinkies! Congratulations!