Multiplying and Adding Integers

-4(5)

• -20

• 1

• 20

• -1

Negative Integer x Positive Integer = 

• Positive Integer

• Negative Integer

• It depends on which number has the largest absolute value.

A set of numbers that contains all whole numbers and their opposites.

• Rational Numbers

• Integers

• Whole Numbers

(-9)(-8)

• -72

• 72

 Evaluate xy if x = -2 and y = -13.

1. Since the 2 integers have ​ (a)   , 

2. The product will be ​ (b)  

3. xy =​ (c)  

• Same Signs
• Positive
• 26
• Different Signs
• Negative
• -26

• 5 x 3 = 15
• 5 x (-3) = 15
• 5 x (-3) = -15
• -5 x (-3) = -15

(-4)(6) 

• -24

• 24

(-6)(5)

• 30

• -30

(-7)(-7)

• 14

• -14

• 49

• -49

(4)(-7)

• 28

• -3

• 3

• -28