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1.3B Multiplying and Dividing integers

1.3B Multiplying and Dividing integers. I can multiply and divide integers to solve problems involving integers. Multiplying integers. The product of 2 integers with the same sign is positive Ex: 3(2) = 6 and -3(-2) = 6

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1.3B Multiplying and Dividing integers

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  1. 1.3B Multiplying and Dividing integers I can multiply and divide integers to solve problems involving integers.

  2. Multiplying integers • The product of 2 integers with the same sign is positive • Ex: 3(2) = 6 and -3(-2) = 6 • The product of 2 integers with different signs is negative • Ex: -3(2) = -6 and 3(-2) = 6

  3. Dividing integers • The quotient of 2 integers with the same sign is positive • Ex: • The quotient of 2 integers with different signs is negative • Ex:

  4. Practice • Find the product: • 3(7) • +3 and +7 same signs product is positive • -4(5) • 6(-3) • (-9)2

  5. practice • Find the quotient

  6. Try this! • Find the vertical speed of a climber who goes from an elevation of 8,120 feet to an elevation of 6,548 feet in three hours. • How far did he climb? • 6548 – 8120 = -1572 feet (final elevation – initial elevation) • How long did it take? • 3 hours • Negative vertical speed because elevation is decreasing

  7. Something to think about • What if the climber had been a diver? • How would you represent diving 100 m below the surface? • -100 since it is below • Keep this in mind! • Read the context and remember

  8. assignment • ODDS ONLY • Pg. 18 #3,5, 11-15,19,21,27-35

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