FIND YOUR NEW SEAT!!!1. Fill in Learning Log HW:

1) ATN p. 66-74 #10-13, 38-41 Complete answers: Show your Work!

2) Correct on our class website!3) Inv 2 packet – check off tomorrow!4) 30 mins of MathXLforSchool this week

2.On desk: Inv 3 packet (New), notebook, toolkit

3.Warm Up: Write the rules & give an example:Addition:Positive + Positive =Negative + Negative =Positive + Negative =Negative + Positive =

Subtraction:Positive

Negative

Don’t Subtract,Add the Opposite!

Then follow the Addition Rules:

20 + 10 = 30

-20 + -10 = -30

-20 + 10 = -10

20 + -10 = 10

Don’t Subtract,Add the Opposite!

Then follow the Addition Rules:

Subtracting Integers 20 - 10 = 20 + -10 = 10

-20 – (-10)= -20 + 10 = -10

New packet:

As a table group, complete the front page of Inv 3.2

As the number multiplied by 5 decreases by 1, the product decreases by 5

Look for patterns: How do the products change as the numbers multiplied by 5 decrease?

packet

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

The product increases each time because you are accumulating fewer negatives (one less group of -4)

Each of the products is the opposite of the product of 4 and a negative number.

Positive Factors One Negative Factor

Two Negative Factors

+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

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!

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!

Multiplying Integers - Rules

Positive x Positive = PositivePositive x Negative = NegativeNegative x Positive = NegativeNegative x Negative = Positive

Homeworkp. 66-74 #10-13, 38-41

Complete answers: Show your Work!