Unit 8: Decimal Division

Decimal by Whole Number

100

4.86 ÷ 6  

0.81

200

5.25 ÷ 5  

1.05

300

10.08 ÷ 4  

 2.52

400

7.875 ÷ 5  

1.575

500

18.375 ÷ 15  

1.225

Whole Number by Decimal

100

6 ÷ 0.5 =  

12

200

5 ÷ 0.25 =

 20

300

24 ÷ 0.6 =  

40

400

9 ÷ 0.12  =

75

500

27,000 ÷ 18 =  

1,500

Decimal by Decimal

100

4.5 ÷ 0.15  

30

200

2.4 ÷ 0.06  

40

300

4.62 ÷ 0.21

22

400

5.04 ÷ 0.18  

28

500

0.945 ÷ 0.35  

2.7

Word Problems

100

Emma pours 4.8 liters of juice equally into 6 bottles.
How many liters go in each bottle?

4.8 ÷ 6 = 0.8 liters

200

A rope is 12 meters long. Each piece must be 0.5 meters long.
How many pieces can be cut?

12 ÷ 0.5 = 24 pieces

300

A runner travels 3.6 miles in 0.12 hours.
What is the runner’s speed?

3.6 ÷ 0.12 = 30 miles per hour

400

A 12.48-mile bike ride is split evenly over 4 days.
How many miles each day?

12.48 ÷ 4 = 3.12 miles

500

A water tank holds 18 gallons. Water drains at 0.45 gallons per minute.
How long will it take to empty?

18 ÷ 0.45 = 40

General Division Knowledge

100

The answer to a division problem is called the ___________. 

Quotient

200

Write two related division problems for the following mutliplication fact:

 2.3 x 1.4 = 3.22

3.22 ÷ 2.3 = 1.4

3.22 ÷ 1.4 = 2.3

300

Explain how to make 0.456 a whole number. 

Multiply by 1,000

or...

move the place value three places to the right by multiplying by x10 three times

400

Label the following in this equation:

Dividend, Divisior & Quotient

7.5 ÷ 5 = 1.5

7.5 = dividend

5 = divisor

1.5 = quotient

500

What question do we always ask ourselves when we divide by decimals? 

Is the divisior a whole number?