Multiplying and Dividing Decimals Lesson

Multiplying and Dividing Decimals

Multiplying Decimals

• Multiply as if there are no decimals.

• Count the amount of numbers behind the decimals and place the decimal in the product.

4.32 x 5.9 =

Multiple Choice

93.2 x 6.2 =

• 57.784

• 577.84

• 648.34

• 57.674

Open Ended

Fabiola's basketball team practices 4.25 hours each week. The basketball season is 14 weeks long. How much time does Fabiola spend in practice during the season?

Dividing Decimals

• Divide as if there are not decimals.

• If there is not a decimal in the divisor, bring up the decimal.

• If there is a decimal in the divisor, scoop the decimal over in the divident and bring it up.

 $3.78\ \div0.3\ =$  

 $82.6\ \div4\$  

Multiple Choice

6.96 ÷ 1.2

• 59

• 5.9

• 58

• 5.8

Multiple Choice

A trail is 8.25 miles long. If Maggie walks at a rate of 3.3 miles per hour, how many hours will it take her to reach the end of the trail?

• 2.9

• 3.5

• 2.5

• 4.34

Multiplication or Division

Read the following word problems to decide if it is multiplication or division.

Multiple Choice

The Mars rover travels across flat ground at a speed of 0.14 kilometer per hour. How many hours will it take the robot to travel 1.68 kilometers?

• Multiplication

• Division

Multiple Choice

Rose buys 3.5 pounds of oranges at a cost of $2.80 for one pound. What is the total cost of the oranges?

• Multiplication

• Division