James binges on Cheezits and eats 3 bags that are 2 ounces each.  There are 150 calories in an ounce of Cheezits.  He then goes for a 40-minute run and burns 12 calories per minute.  How many excess calories did he eat?
He ate 2*3=
<gadget id="calculator">2*3</gadget>
<output>6</output>
6 ounces of cheez its.
That means he ate 6*150=
<gadget id="calculator">6*150</gadget>
<output>900</output>
900 calories.
He burned 40*12=
<gadget id="calculator">40*12</gadget>
<output>480</output>
480 calories.
So he ate an excess of 900-480=
<gadget id="calculator">900-480</gadget>
<output>420</output>
420 calories.

<result>420</result>