Multiplying/Dividing Integers

Multiplying/Dividing Integers

Multiple Choice

Negative + Negative =

• Positive

• Negative

• Zero

Multiple Choice

Solve the following expression.

 $\left(-3\right)-5=$  

• 3

• - 8

• - 5

• 2

Learning Target

• I can multiply and divide integers.

Multiplying/Dividing Integers

• Same rules apply for both multiplication and division.

• positive x/ $\div$  positive = positive 

• negative x/ $\div$  negative = positive
  

• positive x/ $\div$  negative = negative
  

Multiplying Integers

•  $\left(-3\right)\left(8\right)=-24$  , negative x positive = negative

•  $\left(-11\right)\left(-11\right)=121$  , negative x negative = positive

Dividing Integers

•  $\left(-81\right)\div9=\left(-9\right)$  

• negative divided by positive = negative

•  $\frac{-36}{-6}=6$  

• negative by negative = positive

Division by Fraction Bar

•  $-\frac{21}{7}$  

•  $\frac{-21}{7}\ or\ \frac{21}{-7}\ \ \ or\ -1\left(\frac{21}{7}\right)$  

• If a fraction is negative, that means either the numerator OR denominator is negative, not both

Division by Fraction Bar

•  $\frac{-21}{-7}=\frac{21}{7}$  

• Negative divided by negative = positive

Multiple Choice

Solve the following expression.

 $\left(-1\right)\left(-5\right)=$  

• 15

• 5

• - 1

• - 15

Multiple Choice

Solve the following expression.

 $\frac{-25}{5}=$  

• 3

• - 5

• - 3

• 5

Multiple Choice

Multiplying and Dividing Integers have the same rules, true or false?

• True

• False

Assignment

• Complete Savvas Lesson Quizzes