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Published byErica Haynes Modified over 8 years ago

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What is the total of my hand? How would we write this as multiplication?

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What is the total of my hand? How would we write this as multiplication?

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Modeling with Integer Chips 3 x 4

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3 x -4

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-3 x 4

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-3 x -4

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Generate real-world situations that can be modeled by each of the following multiplication problems. a. −3 × 5 b. −6 × (−3) c. 4 × (−7)

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The Rules There are only two rules to follow: –Multiplying or dividing integers with the same sign, the outcome is positive –Multiplying or dividing integers with different signs, the outcome is negative

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Try Some

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Closure How do we determine if the product of two signed numbers will be positive or negative? Why does the product of two negative values result in a positive value?

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Exit Ticket 1. Create a real-life example that can be modeled by the expression −2 × 4, and then state the product. 2. Two integers are multiplied, and their product is a positive number. What must be true about the two integers?

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