Download presentation

Presentation is loading. Please wait.

1
**2.1 Day 3: Multiplying more than two integers**

Go Math

2
**Multiplying Many Integers**

When multiplying many integers, you can multiply from left to right For example, 3(-4)(-2) Do the first two numbers (-12)(-2) 24

3
Simplify -1 (-1) 1

4
Simplify -1(-1)(-1) 1(-1) -1

5
**-1(-1)(-1)(-1) 1(-1)(-1) -1(-1) 1**

Simplify -1(-1)(-1)(-1) 1(-1)(-1) -1(-1) 1

6
**-1(-1)(-1)(-1)(-1) 1(-1)(-1)(-1) -1(-1)(-1) 1(-1) -1**

Simplify -1(-1)(-1)(-1)(-1) 1(-1)(-1)(-1) -1(-1)(-1) 1(-1) -1

7
Simplify -1(-1)(-1)(-1)(-1)(-1) 1(-1)(-1)(-1)(-1) -1(-1)(-1)(-1) 1(-1)(-1) -1(-1) 1

8
See a Pattern?? What is the sign when there is an even number of negative signs? Positive

9
See a Pattern? What is the sign when there are an odd number of negative signs? Negative

10
**Rule: When multiplying Integers,**

If there is an even number of negative factors the product is positive If there is an odd number of negative factors the product is negative

11
**Tell whether the answer is positive or negative**

3(2)(-3) Negative 3(-2)(-3) Positive 3(2)(-3)(4)(-1) Positive 5(8)(-4)(2)(-3)(-4) Negative

12
**285(1) 285 Try these: Multiply 1.) 15(-9) (-1) Answer will be positive**

2.) -3 (-6)(-2) Answer will be negative 18(2) -36

13
Homework Worksheet

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google