A car drives from place A to place B. It travels the whole distance (3/5) in the first hour, and travels 45km in the second hour. It is still 80km away from place B. How many meters are there between A and B?
一辆汽车从甲地开往乙地，第一小时行了全程的(3/5)，第二小时行了45km，距离乙地还有80km．甲乙两地相距多少米？
<gadget id="calculator">45 + 80</gadget>
<output>125</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">125 / (2/5)</gadget>
<output>625/2 = around 312.5</output>

<gadget id="calculator">(625/2) * 1_000</gadget>
<output>312_500</output>

<result>312_500</result>