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Accentuate the Negative Investigation 3 Multiplying and Dividing Integers X X ÷

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Presentation on theme: "Accentuate the Negative Investigation 3 Multiplying and Dividing Integers X X ÷"— Presentation transcript:

1 Accentuate the Negative Investigation 3 Multiplying and Dividing Integers X X ÷ ÷

2 3.1-2 Introducing Multiplication of Integers Multiplication And Division AlgorithmExample Same Signs  Product is positive  Quotient is positive 2 x 3 = 6 -2 x -3 = 6 12 ÷ 2 = ÷ -2 = 6 Different Signs  Product is negative  Quotient is negative 2 x -3 = x 3 = ÷ -2 = ÷ 2 = -6

3 ‘Multiplication’ Flap of Foldable Left side Same Signs Product is Positive Ex. 2 x 5 = 10 Ex. -6 x -3 = 18 Right side Different Signs Product is Negative Ex. -7 x 3 = -21 Ex. 2 x -1 = -2

4 ‘Division’ Flap of Foldable Left side Same Signs Quotient is Positive Ex. 12 ÷ 4 = 3 Ex. -15 ÷ -3 = 5 Right side Different Signs Quotient is Negative Ex. -20 ÷ 10 = -2 Ex. 45 ÷ -15 = -3

5 Same Signs Product is Positive Ex. 2 x 5 = 10 Ex. -6 x -3 = 18

6 Different Signs Product is Negative Ex. -7 x 3 = -21 Ex. 2 x -1 = -2

7 Same Signs Product is Positive Ex. 2 x 5 = 10 Ex. -6 x -3 = 18

8 Different Signs Product is Negative Ex. -7 x 3 = -21 Ex. 2 x -1 = -2

9 Same Signs Product is Positive Ex. 2 x 5 = 10 Ex. -6 x -3 = 18

10 Different Signs Product is Negative Ex. -7 x 3 = -21 Ex. 2 x -1 = -2

11

12 Same Signs Quotient is Positive Ex. 12 ÷ 4 = 3 Ex. -15 ÷ -3 = 5

13 Different Signs Quotient is Negative Ex. -20 ÷ 10 = -2 Ex. 45 ÷ -15 = -3

14 Same Signs Quotient is Positive Ex. 12 ÷ 4 = 3 Ex. -15 ÷ -3 = 5

15 Different Signs Quotient is Negative Ex. -20 ÷ 10 = -2 Ex. 45 ÷ -15 = -3

16 Same Signs Quotient is Positive Ex. 12 ÷ 4 = 3 Ex. -15 ÷ -3 = 5

17 Different Signs Quotient is Negative Ex. -20 ÷ 10 = -2 Ex. 45 ÷ -15 = -3


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