Team A and Team B build roads at the same time. It is known that Team A built 500 meters in the morning and 700 meters in the afternoon on the first day, and Team B built 50 meters more roads on the first day than Team A (9/10). One day, teams A and B are required to build a road of 2500 meters. So are we done? If not finished, how many meters are left?
甲、乙两队同时修路，已知第一天甲队上午修了500米，下午修了700米，而乙队第一天修的路比甲队的(9/10)多50米，工程第一天要求甲、乙两队修路2500米．那么我们完成任务了吗？如果没有完成，还差多少米呢？
<gadget id="calculator">500 + 700</gadget>
<output>1_200</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1_200 * (9/10)</gadget>
<output>1_080</output>

<gadget id="calculator">1_080 + 50 + 1_200</gadget>
<output>2_330</output>

<gadget id="calculator">2_500 - 2_330</gadget>
<output>170</output>

<result>170</result>