John buys a vacuum cleaner for $250 and a dishwasher for $450.  She has a $75 off coupon.  How much did he spend?
The combined price was 250+450=$
<gadget id="calculator">250+450</gadget>
<output>700</output>
700.
So he paid 700-75=$
<gadget id="calculator">700-75</gadget>
<output>625</output>
625.

<result>625</result>