Teddy finished half of a 500 piece puzzle, and then started and finished another 500 piece puzzle within an hour.  How many puzzle pieces did Teddy place during that hour?
Teddy did 1/2 * 500 pieces = 
<gadget id="calculator">500/2</gadget>
<output>250</output>
250 pieces.
Teddy completed 250 pieces + 500 pieces = 
<gadget id="calculator">250+500</gadget>
<output>750</output>
750 pieces.

<result>750</result>