quick start expectations
DESCRIPTION
Quick Start Expectations. Investigation 3: Multiplying and Dividing Rational Numbers. Fill in planner and HWRS HW : p. 66-74 #10-13, 38-41 Complete answers: Show your Work ! Get a signature on your HWRS On desk: math journal, HWRS, pencil Warm Up : - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/1.jpg)
Quick Start Expectations1. Fill in planner and HWRS
HW: p. 66-74 #10-13, 38-41 Complete answers: Show your Work!
2.Get a signature on your HWRS3.On desk: math journal, HWRS, pencil
4.Warm Up:
In your journal: 10/23/14Investigation 3: Multiplying and Dividing Rational Numbers
AN 3.2 Multiplication of Rational NumbersWhat algorithm can you use for
multiplying integers?
![Page 2: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/2.jpg)
![Page 3: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/3.jpg)
Positive Factors One Negative Factor
Two Negative Factors
![Page 4: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/4.jpg)
+6+6
- 6
Yes, multiplication is commutative! The order of the factors doesn’t matter.
Positive x Positive = Positive
Positive x Negative = NegativeNegative x Positive = Negative
![Page 5: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/5.jpg)
Negative x Negative = Positive
Positive, 168Negative, -240
Negative, -1
When there are zero or an even number of negative factors , the product is positive!When there is one or an odd number of negative factors, the product is negative!
![Page 6: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/6.jpg)
PositiveNegative
Positive
NegativePositive
When there are zero or an even number of negative factors , the product is positive!When there is one or an odd number of negative factors, the product is negative!
![Page 7: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/7.jpg)
Multiplying Integers - Rules
Positive x Positive = PositivePositive x Negative = NegativeNegative x Positive = NegativeNegative x Negative = Positive
![Page 8: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/8.jpg)
As the number multiplied by 5 decreases by 1, the product decreases by 5
How do the products change as the numbers multiplied by 5 decrease?
![Page 9: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/9.jpg)
With each equation, there is one fewer group of 5. 5 less than 0 is -5 10 less than 0 is -10 15 less than 0 is -15
![Page 10: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/10.jpg)
The product increases each time because you are accumulating fewer negatives (one less group of -4)
![Page 11: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/11.jpg)
Each of the products is the opposite of the product of 4 and a negative number.
![Page 12: Quick Start Expectations](https://reader030.vdocuments.site/reader030/viewer/2022032605/56812bf5550346895d906ba8/html5/thumbnails/12.jpg)
Homeworkp. 66-74 #10-13, 38-41
Complete answers: Show your Work!