The orchard delivered 480 boxes of pears to the supermarket with 3 trucks. According to this calculation, how many boxes of pears can be transported by adding another truck?
果园用3辆卡车运送了480箱梨子到超市．照这样计算，再增加1辆卡车，一共可以运多少箱梨子？
<gadget id="calculator">480 / 3</gadget>
<output>160</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">160 * 4</gadget>
<output>640</output>

<result>640</result>