Module 1: DECIMALS

Lesson 9: Dividing Decimals by Whole

Numbers

Name: ___________________________________ Date: ____________

New VocabularyVocabulary Definition Using symbols

dividend the number that is being divided in a division problem

divisor A number by which another number is being divided

quotient The answer to a division problem

Dividing Decimals by Whole Numbers

Dividing Decimals by Whole Numbers

Divisor

Quotient

Remember!

0.150.755

Dividend

Dividing Decimals by Whole Numbers

Example : Dividing a Decimal by a Whole Number

Find the quotient.

0.84 ÷ 3

3 0.84

– 624

– 240

Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers.

0.28

Dividing Decimals by Whole Numbers

Example: Dividing a Decimal by a Whole Number

Find the quotient.

3.56 ÷ 4

4 3.56

– 3236

– 360

Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers.

0.89

Dividing Decimals by Whole Numbers

Check It Out

Find the quotient of 2.96 ÷ 4.

4 2.96

– 2816

– 160

0.74

Dividing Decimals by Whole Numbers

Multiplication can “undo” division. To check your answer to a division problem, multiply the divisor by the quotient.

Remember!

Dividing Decimals by Whole Numbers

Example : Consumer Application

Jodi and three of her friends are making a tile design. The materials cost $10.12. If they share the cost equally, how much should each person pay?

4 $10.12– 8

21– 20

12

$2.53

$10.12 should be divided into four equal groups.

Divide $10.12 by 4.

– 120

Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers.

Check2.53 4 = 10.12Each person should pay $2.53.

Dividing Decimals by Whole Numbers

Check It Out

Manuel and two of his friends went to lunch. With tip and tax, the bill came to $25.11. The friends agreed to split the cost equally. How much should each person pay?

3 25.11– 24

11 – 9

21

8.37

– 210 Each person should pay $8.37.

Dividing Decimals by Whole Numbers

Identify the quotient.

6.84 9

A. 0.84

B. 0.76

C. 0.62

D. 0.58

Student Response Systems

Dividing Decimals by Whole Numbers

Identify the quotient.

4.59 9

A. 0.51

B. 0.62

C. 0.73

D. 0.84

Student Response Systems

Dividing Decimals by Whole Numbers

At a fruit stand, 8 pounds of apples cost $2.80. Identify the average cost of apples per pound.

A. $35.00

B. $3.50

C. $0.35

D. $0.03

Student Response Systems

Dividing Decimals by Whole Numbers