The total length of the Wuhan-Guangzhou high-speed railway is about 1000km. An EMU travels from Wuhan to Guangzhou. It travels 30% of the total length in the first hour and 90% of the first hour in the second hour. How many kilometers away is the EMU at this time from Wuhan? ?
武广高铁全长约1000km，一列动车组从武汉开往广州，第一小时行了全长的30%，第二小时行了第一小时的90%，这时这列动车组距武汉多少km？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1_000 * (3/10)</gadget>
<output>300</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">300 * (9/10)</gadget>
<output>270</output>

<gadget id="calculator">270 + 300</gadget>
<output>570</output>

<result>570</result>