The snack bar staff makes 16 gallons of lemonade the staff sells 12 gallons and 2 quarts of lemonade How many quarts of lemonade are left

1 gallon = 4 quarts

1 quart = 2pints

There is 3 gallons and 2 quarts left.

So,

We have 16 gal. initially.

First subtract 12 from 16.

16 - 12 = 4

Now, when we subtract 2 qt. from it, we imagine one of the gallons in 4 parts (4 qt. = 1 gal.)

4 - 2 = 2

There will be 3 whole gallons with 2 quarts, or 3 gal. 2 qt. left.