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1.6 notes 7th

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1.6 notes 7th

1. 1. Warm up 1.5Subtract1. – 6 – ( -4)2. - 3 – 33. 4 – ( - 5)Evaluate the expression4. 9 – s for s = - 55. - 4 – w + 5 for w = 21
2. 2. 1.6 Multiplying and Dividing Integers
3. 3. Multiplying and Dividing two integersIf the signs are the same, the sign of the answer is positive.If the signs are different, the sign of the answer is negative.
4. 4. True or False ?????If a product is negative, then there must be an odd number of negative factors in the expression.If a quotient is negative, there must be an even number of positive factors in the numerator and denominator combined.
5. 5. Example 1: multiply or divide1. -8(-9) 4. −72 82. 7(-7) 5. −42 − 73. -9(3)(-2) 6. 32 −8
6. 6. Example 2: Simplify1. -5(3 + 7)2. 9(8 – 20)3. -8(-5-5)
7. 7. Example 3: Evaluate1. -3t – 5 for t = 32. -x + 5 for x = -9
8. 8. Warm up 1.6Multiply or Divide1. -8(4)2. − (5) 12 −10Simplify3. -2(13-4)4. 6(-5 – 3)5. 6(s + 9) for s = -1