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## MAP Recommended Practice

### Course: MAP Recommended Practice>Unit 26

Lesson 8: Converting US customary units

# 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:

## Practice set 1: Estimating weight

Problem 1A
Identify the most reasonable unit to measure the weight of a refrigerator.

Want to try more problems like this? Check out this exercise.

## Converting pounds to ounces

To convert pounds to ounces we multiply the number of pounds by $16$.
Example:

## Converting ounces to pounds

To convert ounces to pounds we divide the number of ounces by $16$.
Example:
$9$ pounds $=$