A piece of iron wire, cut off its (1/10) for the first time, cut off the rest (1/9) for the second time, cut off the remaining (1/8) of the first two times for the third time, ..., the ninth Cut off the remaining (1/2) of the first eight times for the first time, leaving 10 meters in the end. How many meters is this wire?
一根铁丝，第一次剪去它的(1/10)，第二次剪去余下的(1/9)，第三次剪去前两次余下的(1/8)，…，第九次剪去前八次余下的(1/2)，最后剩下10米，这根铁丝有多少米？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 9</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">10 / (1/10)</gadget>
<output>100</output>

<result>100</result>