Multiplying and dividing rational numbers

Is the product positive or negative?

(0.45)(-0.15)(0.18)

(a)  

Tags

CCSS.7.NS.A.2A

Find the product.

(2)(4)(5)

• -20

• 20

• -40

• 40

Tags

CCSS.7.NS.A.2A

Multiply. Write problem down and show all work on loose leaf.

• 27/40

• -27/40

• 5/6

• -5/6

Tags

CCSS.7.NS.A.2A

• 29.4

• 2.94

• -2.94

• -29.4

Tags

CCSS.7.NS.A.2A

True or False. Multiplying two rational numbers with the same signs will always result in a positive number.

• True

• False

Tags

CCSS.7.NS.A.2A

− 20.6 ⋅ 9.43 =

• − 184.258

• 184.258

• 194.258

• − 194.258

Tags

CCSS.7.NS.A.2A

Rule: Only for Multiplication and Division
Same Sings = Positive Answer
Different Signs = Negative Answer

 $-\frac{2}{\left(-4\right)}\$  = ?

•  $-\frac{1}{3}$  

•  $\frac{1}{2}$  

Tags

CCSS.7.NS.A.2A

 $\left(-\frac{1}{2}\right)\left(\frac{7}{12}\right)\left(-\frac{4}{5}\right)=$  

•  $-\frac{30}{7}$  
  

•  $-\frac{7}{30}$  

•  $\frac{30}{7}$  
  

•  $\frac{7}{30}$  
  

Tags

CCSS.7.NS.A.2A

-1/3 x 2/5 =

• -3/8

• 2/15

• -2/15

• -1/15

Tags

CCSS.7.NS.A.2A

Positive times Positive =

• Positive

• Negative

Tags

CCSS.7.NS.A.2A