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Algebra I – Chapter 2. Integers and Properties. Integer Rules. Adding: Different signs : Find the difference and keep the sign of the larger number Ex: (-3) + (6) = (3) Same signs : Add and keep the signs Ex: (-3) + (-6) = (-9). Integer Rules. Subtracting: Add the Opposite.

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algebra i chapter 2

Algebra I – Chapter 2

Integers and Properties

integer rules
Integer Rules
  • Adding:
    • Different signs: Find the difference and keep the sign of the larger number
        • Ex: (-3) + (6) = (3)
    • Same signs: Add and keep the signs
        • Ex: (-3) + (-6) = (-9)
integer rules1
Integer Rules
  • Subtracting:
    • Add the Opposite
integer rules2
Integer Rules
  • Multiplying and Dividing:
    • Different Signs:The answer is negative
      • Ex: (-6)(3) = (-18)
    • Same Sign: The answer is positive
      • Ex: (-4)(-5) = 20
reflection
Reflection:
  • What will the answer be when you multiply two numbers with the same signs?
  • What about when you divide two numbers with different signs?
  • When can associative property work?
tonight s homework

Tonight’s Homework:

Page 641 – 642

(1-91 odd)