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2-5 Multiply Q pgs 77-80 2-6 Divide Q pgs 81-86

2-5 Multiply Q pgs 77-80 2-6 Divide Q pgs 81-86. 9N3: Explain effects of operations on magnitude of quantities 9N4: Develop fluency in computation. Rules Count the number of negative signs If there are an even number of negatives the answer is … Positive .

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2-5 Multiply Q pgs 77-80 2-6 Divide Q pgs 81-86

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  1. 2-5 Multiply Q pgs 77-802-6 Divide Q pgs 81-86 9N3: Explain effects of operations on magnitude of quantities 9N4: Develop fluency in computation

  2. RulesCount the number of negative signs If there are an even number of negatives the answer is … Positive Example: (-2)(-3)(-4)(-1) ← 4 negatives (6)(4) 24 ← positive answer Example: (-3)2 (-3)(-3) 9 Example: (-100) ÷ (-25) 4

  3. If there are an odd number of negatives the answer is …. negative Example: (-2)(3)(-4)(-1)← 3 negatives (-6)(4) -24 ← negative answer Example: -(4)4 -(4)(4)(4)(4) -256 Example: 8xy -2x -4y

  4. Problems 1) 2)

  5. 3) 4)

  6. More 5) 6)

  7. 7) 8) 9)

  8. Assignment • 2-5/79/22-52e • 2-6/85/48-68e

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