Tom eats a pound of carrots and twice as much broccoli.  If carrots have 51 calories per pound and broccoli has 1/3 that many calories, how many calories did he eat in total?
He ate 2 * 1 = 
<gadget id="calculator">2*1</gadget>
<output>2</output>
2 pounds of broccoli.
There are 51 / 3 = 
<gadget id="calculator">51/3</gadget>
<output>17</output>
17 calories in each pound of broccoli.
So he ate 2 * 17 = 
<gadget id="calculator">2*17</gadget>
<output>34</output>
34 calories of broccoli.
He ate 1 * 51 = 
<gadget id="calculator">1*51</gadget>
<output>51</output>
51 calories of carrots.
So in total he ate 51 + 34 = 
<gadget id="calculator">51+34</gadget>
<output>85</output>
85 calories.

<result>85</result>