The shipping company delivered 100 large vases, and the shipping fee was 3 yuan for moving one, and 5 yuan for breaking one. After shipping, the total shipping fee was 260 yuan.
货运公司送100个大花瓶的货，搬一个得运费3元，打碎一个要赔5元，运完后共得运费260元，搬运中打碎了多少个花瓶．
<gadget id="calculator">100 * 3</gadget>
<output>300</output>

<gadget id="calculator">300 - 260</gadget>
<output>40</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">40 / 8</gadget>
<output>5</output>

<result>5</result>