<< Chapter < Page Chapter >> Page >

Multiply: ( 718 ) 509 .

365,462

Got questions? Get instant answers now!

Multiply: ( 627 ) 804 .

504,108

Got questions? Get instant answers now!

When there are three or more factors, we multiply the first two and then multiply their product by the next factor. For example:

to multiply 8 3 2
first multiply 8 3 24 2
then multiply 24 2 . 48

Translate word phrases to math notation

Earlier in this section, we translated math notation into words. Now we’ll reverse the process and translate word phrases into math notation. Some of the words that indicate multiplication are given in [link] .

Operation Word Phrase Example Expression
Multiplication times
product
twice
3 times 8
the product of 3 and 8
twice 4
3 × 8 , 3 · 8 , ( 3 ) ( 8 ) ,
( 3 ) 8 , or 3 ( 8 )
2 · 4

Translate and simplify: the product of 12 and 27 .

Solution

The word product tells us to multiply. The words of 12 and 27 tell us the two factors.

the product of 12 and 27
Translate. 12 27
Multiply. 324

Got questions? Get instant answers now!
Got questions? Get instant answers now!

Translate and simplify the product of 13 and 28 .

13 · 28; 364

Got questions? Get instant answers now!

Translate and simplify the product of 47 and 14 .

47 · 14; 658

Got questions? Get instant answers now!

Translate and simplify: twice two hundred eleven.

Solution

The word twice tells us to multiply by 2 .

twice two hundred eleven
Translate. 2(211)
Multiply. 422
Got questions? Get instant answers now!
Got questions? Get instant answers now!

Translate and simplify: twice one hundred sixty-seven.

2(167); 334

Got questions? Get instant answers now!

Translate and simplify: twice two hundred fifty-eight.

2(258); 516

Got questions? Get instant answers now!

Multiply whole numbers in applications

We will use the same strategy we used previously to solve applications of multiplication. First, we need to determine what we are looking for. Then we write a phrase that gives the information to find it. We then translate the phrase into math notation and simplify to get the answer. Finally, we write a sentence to answer the question.

Humberto bought 4 sheets of stamps. Each sheet had 20 stamps. How many stamps did Humberto buy?

Solution

We are asked to find the total number of stamps.

Write a phrase for the total. the product of 4 and 20
Translate to math notation. 4 20
Multiply. 20 × 4 ___ 80
Write a sentence to answer the question. Humberto bought 80 stamps.
Got questions? Get instant answers now!
Got questions? Get instant answers now!

Valia donated water for the snack bar at her son’s baseball game. She brought 6 cases of water bottles. Each case had 24 water bottles. How many water bottles did Valia donate?

Valia donated 144 water bottles.

Got questions? Get instant answers now!

Vanessa brought 8 packs of hot dogs to a family reunion. Each pack has 10 hot dogs. How many hot dogs did Vanessa bring?

Vanessa bought 80 hot dogs.

Got questions? Get instant answers now!

When Rena cooks rice, she uses twice as much water as rice. How much water does she need to cook 4 cups of rice?

Solution

We are asked to find how much water Rena needs.

Write as a phrase. twice as much as 4 cups
Translate to math notation. 2 4
Multiply to simplify. 8
Write a sentence to answer the question. Rena needs 8 cups of water for cups of rice.
Got questions? Get instant answers now!
Got questions? Get instant answers now!

Erin is planning her flower garden. She wants to plant twice as many dahlias as sunflowers. If she plants 14 sunflowers, how many dahlias does she need?

Erin needs 28 dahlias.

Got questions? Get instant answers now!

A college choir has twice as many women as men. There are 18 men in the choir. How many women are in the choir?

There are 36 women in the choir.

Got questions? Get instant answers now!

Van is planning to build a patio. He will have 8 rows of tiles, with 14 tiles in each row. How many tiles does he need for the patio?

Solution

We are asked to find the total number of tiles.

Write a phrase. the product of 8 and 14
Translate to math notation. 8 14
Multiply to simplify. 1 3 4 × 8 ___ 112
Write a sentence to answer the question. Van needs 112 tiles for his patio.
Got questions? Get instant answers now!
Got questions? Get instant answers now!

Questions & Answers

what is mutation
Janga Reply
what is a cell
Sifune Reply
how is urine form
Sifune
what is antagonism?
mahase Reply
classification of plants, gymnosperm features.
Linsy Reply
what is the features of gymnosperm
Linsy
how many types of solid did we have
Samuel Reply
what is an ionic bond
Samuel
What is Atoms
Daprince Reply
what is fallopian tube
Merolyn
what is bladder
Merolyn
what's bulbourethral gland
Eduek Reply
urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
onuoha Reply
State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
Jeremiah
what is heart
Konadu Reply
how is urine formed in human
Konadu
how is urine formed in human
Rahma
what is the diference between a cavity and a canal
Pelagie Reply
what is the causative agent of malaria
Diamond
malaria is caused by an insect called mosquito.
Naomi
Malaria is cause by female anopheles mosquito
Isaac
Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
Olalekan
a canal is more needed in a root but a cavity is a bad effect
Commander
what are pathogens
Don Reply
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
Zainab
A virus
Commander
Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
Davonte
what are the functions of Endocrine and pituitary gland
Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
Achor
what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
Alfreda
Biology is the study of how living organisms live and survive in a specific environment
Sifune
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply
Practice Key Terms 1

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Prealgebra. OpenStax CNX. Jul 15, 2016 Download for free at http://legacy.cnx.org/content/col11756/1.9
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Prealgebra' conversation and receive update notifications?

Ask