During the earthquake relief, Xiaoqiang and Xiaoming decided to donate part of the money to the people in the disaster area. Xiaoqiang donated 180 yuan, and Xiaoming donated 20% less than Xiaoqiang. How much did Xiaoming donate?
在抗震救灾中，小强和小明决定各捐出一部分钱给灾区人民，小强捐了180元，小明捐的比小强的少20%，小明捐了多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">180 * (4/5)</gadget>
<output>144</output>

<result>144</result>