There are a total of 17 tons of goods in the warehouse, 7.56 tons were transported for the first time, and 3.44 tons were transported for the second time. How many tons are left?
仓库里共有货物17吨，第一次运走了7.56吨，第二次运走3.44吨，还剩多少吨没有运走？
<gadget id="calculator">7.56 + 3.44</gadget>
<output>11</output>

<gadget id="calculator">17 - 11</gadget>
<output>6</output>

<result>6</result>