Multiplying Rational Numbers

Multiplying Rational Numbers

1B.07 Multiplying Rational Numbers

Poll

Will the product be positive or negative?

 $-3.04\left(-5.6\right)$  

• Positive

• Negative

Poll

Will the product be positive or negative?

 $-3.3\left(6.2\right)$  

• Positive

• Negative

Fill in the Blank

How many places should the decimal point be moved in the product?

Multiple Choice

(2.5)(-1.2)

• -3.7

• 3.7

• 3

• -3

Poll

Will the product be positive or negative?

 $-5\left(2\ \frac{1}{3}\right)$  

• Positive

• Negative

Poll

Can the fraction be simplified?

 $-\frac{35}{3}$  

• Yes

• No

• I don't know 

Poll

Will the product be positive or negative?

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

• Positive

• Negative

Poll

Can the fraction be simplified?

 $-\frac{2}{20}$  

• Yes

• No

• I don't know

Multiple Choice

Multiply. Be sure to simplify your answer!!

• 27/40

• -27/40

• 5/6

• -5/6

Multiple Choice

Gina hiked down a canyon and stopped each time she descended ½ a mile to rest. She hiked a total of 4 sections. What is her overall change in elevation?

Which number sentence represents the scenario?

• $4\left(-\frac{1}{2}\right)$

• $4\ +\ \frac{-1}{2}$

• $4\ -\ \left(\frac{-1}{2}\right)$

• $4\div\left(-\frac{1}{2}\right)$

Open Ended

Create a situation to represent the multiplication below. Remember, it is telling us that we have 5 groups of 3/4.

 $5\left(\frac{3}{4}\right)$