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Objective

Learn the rules for multiplying and dividing integers, including same sign and different sign scenarios. Understand how to determine the sign of the answer and evaluate expressions. Examples and step-by-step instructions provided.

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Objective

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Presentation Transcript

  1. Objective Multiply and divide integers

  2. Rules for multiplying and dividing integers • Same Sign 2. Different Signs Positive Answer Negative Answer

  3. Evaluate the expression 5 (-4) Write the problem 5 (-4) Draw arrows to determine sign of answer different Multiply numbers without signs 5  4 - 20 Different signs, negative answer

  4. Evaluate the expression -6 (-8) Write the problem -6 (-8) Draw arrows to determine sign of answer Same Multiply numbers without signs 6  8 48 Same sign, positive answer

  5. Evaluate the expression (-7)2 Write the problem (-7)2 Multiply base times itself Draw arrows to determine sign of answer (-7)(-7) same Multiply numbers without signs 7  7 49 Same sign, positive answer

  6. Evaluate the expression 51  (-3) Write the problem 51  (-3) Draw arrows to determine sign of answer opposite 51  3 Divide numbers without signs - 17 Opposite signs, negative answer

  7. -81 Evaluate the expression 9 -81 Write the problem 9 Draw arrows to determine sign of answer opposite 81  9 Divide numbers without the signs - 9 Opposite signs, negative answer

  8. Evaluate the expression -12  -2 Write the problem -12  -2 Draw arrows to determine sign of answer same 12  2 Divide numbers without signs 6 Same signs, positive answer

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