Decimal Division

Vocabulary

100

What is the place value of the 3 in the number 0.034?

Hundredths

200

What is the answer to a division problem?

Quotient

300

What is the number 3.49 in the following expression called?

3.49 / 12 

Dividend

400

The 3 in 10³ is an __________?

exponent

500

The answer to an equation which has used rounding OR compatible numbers is an ______________.

estimate

Rules

100

When dividing a decimal by a power of ten the decimal always move to the ___________.

Hint: direction

left

200

When dividing a decimal by a power of ten, how do you know how many places it moves?

By the number of zeros in the power of ten

300

True or False

When dividing to get a decimal, I can have a remainder

False

400

True or False

When I annex a zero I will always add a decimal.

False

500

When the divisor is greater than the dividend, the quotient will be __________________. 

less than 1

Powers of 10

100

34.6 / 10¹

3.46

200

148.3 / 100

1.483

300

5,983 / 10⁴

.5983

400

72.93 / 1,000

.07293

500

Rewrite this equation using an exponent and then solve.

13.294 / 10,000

13.294 / 10⁴ = .0013294

Equations

100

43.8 / 6 = c

c = 7.3

200

92 / 8 = x

x = 11.5

300

5.6 / 0.14 = b

b = 40

400

15.3 / 18 = y

y = .85

500

Estimate the following equation then solve.

64.12 / 7.4 = a

63 / 7 = a

a = 9

Word Problems

100

Cara is making punch for her party. Her punch bowl holds 600 ounces, which is 80 servings of punch. How many ounces of punch are in each serving?

600 / 80 = s

s = 7.5

7.5 ounces are in each serving.

200

A pokemon card collector pays $100.44 for 36 cards. What is the cost of each pokemon card?

100.44 / 36 = c

c = 2.79

Each pokemon card costs $2.79 each.

300

Lionel is buying ice chests to hold 144 bottles of lemonade for a picnic. Each ice chests holds 23 bottles. About how many ice chests will Lionel need?

140 / 20 = c

c = 7

Lionel needs about 7 ice chests.

400

The cost of a taxi ride to the airport is $48.06. The cost per mile is $0.72. How many miles is the taxi ride?

48.06 / 0.72 = m

m = 66.75

The taxi ride is 66.75 miles.

500

John has three batches of cookie dough. Each batch weighs 8.4 oz. He plans to make 36 cookies. If all the cookies are the same size and weight, how much will each cookie weigh?

8.4 x 3 = o        o / 36 = w

25.2 / 36 = .7 

Each cookie will weigh 0.7 oz.