A car drives from place A to place B at a constant speed. After driving for 2.5 hours, it is still 260 kilometers away from place B. After driving for another 4 hours, it is still 100 kilometers away from place B. How many kilometers are there between A and B?
一辆汽车从甲地匀速开往乙地，开了2.5小时，离乙地还有260千米，又行了4小时，离乙地仍有100千米．甲、乙两地相距多少千米？
<gadget id="calculator">260 - 100</gadget>
<output>160</output>

<gadget id="calculator">160 / 4</gadget>
<output>40</output>

<gadget id="calculator">2.5 + 6</gadget>
<output>8.5</output>

<gadget id="calculator">40 * 8.5</gadget>
<output>340</output>

<gadget id="calculator">340 + 100</gadget>
<output>440</output>

<result>440</result>