Introduction to Units

What is the VOLUME of the cereal box?

• 23 in³

• 97 in³

• 132 in³

• 288 in³

A unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

​ (a)   centimeters =​​ ​ 1 meter

• 100

• 12

• 36

• 6

• 10

foot = ​ (a)   ​

• 12 inches

• 18 inches

• 10 inches

• 24 inches

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

Which is the "better buy"?  A 12 ounce can of Coke for $1.50 or a 24 ounce can of coke for $3.00?

• They are the same

• The  20 ounce can

• The 12 ounce can

A package of 20 crayons from Crayola costs $18 and a package of 30 crayons from Walmart costs $28.

Which package has the lower cost per crayon? Use unit rates to choose which package of crayons is the better deal.

• 20 pack of crayons is the better deal

• 30 pack of crayons is the better deal

Find the unit rate in pages per minute.

A person can read 30 pages in 15 minutes

• 2 pages per minute

• 1/2 page per minute

Find the unit rate in minutes per page.

• 2 minutes per page

• 1/2 minute per page

Is the following a rate or a unit rate?

$5 per pound

• rate

• unit rate