Mr. Doré bought $140 worth of pants, a $43 shirt and a $15 tie. He pays with a $200 bill. How much will the saleswoman give him back?
The total expenses are $140 + $43 + $15 = $
<gadget id="calculator">140+43+15</gadget>
<output>198</output>
198.
Mr. Doré paid $200, so the saleswoman must give him $200 - $198 = $
<gadget id="calculator">200-198</gadget>
<output>2</output>
2 back.

<result>2</result>