The transportation team transported a batch of rice, the first time it transported 3/10 of the total, and the second time it transported 120 tons, and the remaining 370 tons were not transported. How many tons are there in total in this batch of rice?
运输队运一批大米，第一次运了总数的(3/10)，第二次运了120吨，还剩370吨没有运，这批大米共有多少吨？
<gadget id="calculator">120 + 370</gadget>
<output>490</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">490 / (7/10)</gadget>
<output>700</output>

<result>700</result>