Jim decides to buy mayo in bulk.  He can buy 1 gallon of mayo at Costco for 8 dollars.  At the normal store, a 16-ounce bottle costs $3.  How much money does he save by buying the gallon container?
A gallon is 1*128=
<gadget id="calculator">1*128</gadget>
<output>128</output>
128 ounces.
So he needs to buy 128/16=
<gadget id="calculator">128/16</gadget>
<output>8</output>
8 of the small bottles.
That would cost 8*3=
<gadget id="calculator">8*3</gadget>
<output>24</output>
24 dollars.
So he saves 24-8=$
<gadget id="calculator">24-8</gadget>
<output>16</output>
16.

<result>16</result>