Main content

## 5th grade (Eureka Math/EngageNY)

### Unit 2: Lesson 4

Topic D: Measurement word problems with whole number and decimal multiplication- Converting units: minutes to hours
- Convert units of time
- Converting units: metric distance
- Converting units: centimeters to meters
- Convert units (metrics)
- Metric units of volume review (L and mL)
- Metric units of mass review (g and kg)
- Metric units of length review (mm, cm, m, & km)
- Converting units of time review (seconds, minutes, & hours)
- Converting units: US volume
- Same length in different units
- Convert units (US customary)
- Convert units word problems (metrics)
- US Customary units of volume review (c, pt, qt, & gal)
- US Customary units of weight review (oz & lb)
- US Customary units of length review (in, ft, yd, & mi)
- Time word problem: Susan's break
- Measurement word problem: tea party
- Convert units multi-step word problems (metric)
- Convert units word problems (US customary)
- Measurement word problem: blood drive
- Measurement word problem: distance home
- Measurement word problem: elevator
- Measurement word problem: running laps

© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

# US Customary units of weight review (oz & lb)

Review the size of ounces and pounds and how to convert between the two. Then, try some practice problems.

## Customary units of weight

Weight is a quantity of heaviness. For example, you are measuring the weight of your body when you step on to a scale.

In the customary system of measurement, the most common units of weight are the ounce (oz) and pound (lb).

### How much is an ounce?

A slice of bread has a weight of about 1 ounce:

### How much is a pound?

A soccer ball has a weight of about 1 pound:

*Want to learn more about customary units of weight? Check out this video.*

## Converting pounds to ounces

To convert pounds to ounces we multiply the number of pounds by start color #1fab54, 16, end color #1fab54.

**Example:**

## Converting ounces to pounds

To convert ounces to pounds we divide the number of ounces by start color #1fab54, 16, end color #1fab54.

**Example:**

*Want to learn more about converting pounds to ounces? Check out this video.*

## Practice set 2: Converting units of weight

*Want to try more problems like this? Check out these exercises:*

Convert larger units to smaller units

Converting between units

## Want to join the conversation?

- how do I know if I need to multiply or dived?(3 votes)
- To convert "bigger" units to "smaller" ones, you multiply.

To convert "smaller" to bigger, you divide.

Pound is something big, and ounce is something small - smaller parts make one big thing - 16 ounces are in a pound.

To convert pounds to ounces, you multiply by 16.

To convert ounces to pounds, you divide by 16.(9 votes)

- how many ounces in a pound? I am braindead:/(4 votes)
- Why is it called U.S Customary Units of Weight?(4 votes)
- Because units change in every country in the world. For example, in Japan, people don't use inches!(3 votes)

- Seems like most of you are with me. I din't get this either. =((4 votes)
- how does 8tons = 16000(2 votes)
- bc 8 times 2 is 16 and then you just add the 3 zeros.(2 votes)

- how to find the scientific notation(4 votes)
- Why is it called U.S Customary Units of Weight?(2 votes)
- its because the U.S is the only country that still uses the customary system(3 votes)

- the answer is 110(1 vote)

- how many inches are in a mile?(2 votes)
- There are 5280 feet in a mile and there are 12 inches in a foot. I'll leave it up to you to calculate the rest.(2 votes)

- How many pounds are in 2 tons.(2 votes)
- One ton is 2,000 pounds, so 2 tons is 2*2,000 = 4,000 pounds.(2 votes)