Uncle Wang wholesales 200 writing brushes from the wholesale market. The wholesale price of each writing brush is 1.50 yuan, and Uncle Wang plans to sell them at 1.80 yuan each. If they are all sold, how much gross profit will Uncle Wang get in total?
王叔叔从批发市场批发了200支毛笔，每支毛笔的批发价是1.50元，王叔叔计划以每支1.80元出售．如果全部售出，王叔叔一共能得毛利多少元？
<gadget id="calculator">200 * 1.8</gadget>
<output>360</output>

<gadget id="calculator">200 * 1.5</gadget>
<output>300</output>

<gadget id="calculator">360 - 300</gadget>
<output>60</output>

<result>60</result>