Dad spent 270 yuan on 2 long-sleeved shirts and 180 yuan on 3 short-sleeved shirts. How much does a long-sleeve shirt cost compared to a short-sleeve shirt?
爸爸买2件长袖衬衫花了270元，买3件短袖衬衫花了180元．一件长袖衬衫比一件短袖衬衫贵多少元？
<gadget id="calculator">270 / 2</gadget>
<output>135</output>

<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<gadget id="calculator">135 - 60</gadget>
<output>75</output>

<result>75</result>