There are a total of 45 tons of goods in the warehouse. A truck can transport 5 tons of goods each time, and it has been transported 5 times in the morning, how many times will it be transported in the afternoon?
仓库里一共有45吨货物．一辆货车每次能运5吨货，上午运了5次，下午还要运多少次才能运完？
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">45 - 25</gadget>
<output>20</output>

<gadget id="calculator">20 / 5</gadget>
<output>4</output>

<result>4</result>