The transportation team has to transport 10,000 porcelain bowls, and the shipping fee is 1 yuan for each bowl. If one bowl is damaged, not only will the shipping fee not be paid, but 1 yuan will be compensated. After the transportation team completed the task, they received a total of 9,900 yuan in freight. How many bowls were damaged by the transport team?
运输队要运输1万只瓷碗，每只运费1元，如果损坏1只碗，不但不给运费，还要赔偿1元．运输队完成任务后，共得运费9900元．运输队损坏了多少只碗．
<gadget id="calculator">10_000 - 9_900</gadget>
<output>100</output>

<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<result>50</result>