Delores has some money. She buys a computer for $400 and a printer for $40. If she has $10 left, how much money, in dollars, did Delores have at first?
The computer and printer cost 400+40=
<gadget id="calculator">400+40</gadget>
<output>440</output>
440 dollars.
Delores had 440+10=
<gadget id="calculator">440+10</gadget>
<output>450</output>
450 dollars at first.

<result>450</result>