The construction team has to transport 48 tons of cement to the construction site, 12 tons have already been transported, and the rest is planned to be transported in 9 times. How many tons will be transported on average each time?
建筑队要运48吨水泥到工地，已经运了12吨，剩下的打算分9次运完，平均每次要运多少吨？
<gadget id="calculator">48 - 12</gadget>
<output>36</output>

<gadget id="calculator">36 / 9</gadget>
<output>4</output>

<result>4</result>