6th Grade Math Textbook, Progress

Multiplication and Division Expressions

3-10

Linda washes dogs to earn extra money on weekends.

She spends 30 minutes on each dog. If she washes

5 dogs on Saturday, write an expression for the total

number of minutes she spends washing the dogs.

30 
 5 30 • 5 30 ( 5 )

multiplication expression

multiplication expression

Write an expression for the total number of minutes

Linda spends washing ddogs on Sunday.

30 
d 30 • d 30 (d) 30 d

division expression

Algebraic expressions involving

multiplication commonly omit

the multiplication sign.

30 
d 30 d

Each of the expressions above can be read as:

30 times d dmultiplied by 30

the product of 30 and d

Linda will spend 280 minutes washing dogs

next weekend. If she spends 20 minutes

per dog, write an expression for the number

of dogs she will wash.

280  20 280

20

Write an expression for the number of dogs

Linda will wash if she spends mminutes

per dog.

division expression

280 m 280

m

Each of the expressions above can be read as:

280 divided by m the quotient of 280 and m

the result of dividing 280 by m

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