Title: Lesson 12-2
Author: mark_cameron
Last saved by: gtsmith
Company: McGraw-Hill

Lesson 8-2

Example 1 Change Units of Capacity
Complete 6 qt = ■ pt.	

METHOD 1 Use a ratio table.

You know that there are 2 pints in 1 quart. Set up the ratio table with the measures you know. Then multiply each quantity by the same number.

×6

Since 1 × 6 = 6, multiply each quantity by 6.

Quarts | 1 | 6
Pints | 2 | 12

×6

METHOD 2 Select an appropriate operation.

You are changing a larger unit to a smaller unit. 
Since 1 quart = 2 pints, multiply 6 by 2.
6 × 2 = 12	 

So, 6 quarts = 12 pints.

Example 2 Change Units of Capacity
Complete 32 fl oz = ■ pt. 	

First, find the number of cups in 32 fluid ounces. 
Since 8 fluid ounces = 1 cup, divide 32 by 8.	
32 ÷ 8 = 4 	  
So, 32 fluid ounces = 4 cups. Next, find the number of pints in 4 cups.

Since 2 cups = 1 pint, divide 4 by 2.
4 ÷ 2 = 2	
So, 32 fluid ounce = 2 pints.

Example 3 Change Units of Weight
CONSTRUCTION   A crane weighs 12,000 pounds. How many tons is this?

12,000 lb = ■ T	THINK  2,000 pounds = 1 ton

12,000 ÷ 2,000 = 6	Divide to change pounds to tons.  

So, 12,000 pounds = 6 tons.
Example 4 Change Units of Weight
CANDY   How many 4-ounce bags of candy can be made with 8 pounds of candy?

First, find the total number of ounces in 8 pounds.
8 × 16 = 128		Multiply by 16 to change pounds to ounces.	

Next, find how many sets of 4 ounces are in 128 ounces.
128 oz  ÷ 4 oz = 32

So, 32 bags of candy can be made with 8 pounds of candy.