There are 3 boxes of cereal. One box holds 14 ounces of cereal. Another box holds half the amount of the first box and 5 ounces less than the third box. How much cereal is there in all 3 cereal boxes?
First = 
<gadget id="calculator">14</gadget>
<output>14</output>
14 oz.
Second = (1/2) * 14 = 
<gadget id="calculator">(1/2)*14</gadget>
<output>7</output>
7 oz.
Third = 7 + 5 = 
<gadget id="calculator">7+5</gadget>
<output>12</output>
12 oz
14 + 7 + 12 = 
<gadget id="calculator">14+7+12</gadget>
<output>33</output>
33 oz.
There are 33 ounces of cereal in those 3 boxes.

<result>33</result>