Jiangdong Township wants to build a 600-meter-long canal. On the first day, the full length (2/5) was built, and the rest (3/5) was repaired on the second day. How many meters are left to be repaired?
江东乡要修长600米的水渠，第一天修了全长的(2/5)，第二天修了剩下的(3/5)，还剩下多少米没有修？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * (3/5)</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">1 - (2/5) - (9/25)</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">600 * (6/25)</gadget>
<output>144</output>

<result>144</result>