A train travels 126 kilometers per hour. After 4 hours, there are still 196 kilometers to reach the destination. After arriving at the destination, how many kilometers has the train traveled in total?
一列火车每时行126千米，行了4时后，还有196千米才能到达目的地．到达目的地后，这列火车一共行驶多少千米？
<gadget id="calculator">126 * 4</gadget>
<output>504</output>

<gadget id="calculator">504 + 196</gadget>
<output>700</output>

<result>700</result>