Uncle Zhang planted 1,760 roses, and a factory bought 12 cars, each with 138 trees. How many flowers does Uncle Zhang have left?
张大爷种植了1760棵月季花，一家工厂买走了12车，每辆车装138棵．张大爷还剩多少棵花？
<gadget id="calculator">138 * 12</gadget>
<output>1_656</output>

<gadget id="calculator">1_760 - 1_656</gadget>
<output>104</output>

<result>104</result>