Nanjie Village, Leping Town needs to build a 640-meter landscape avenue. (1/4) of this road was built in the first week, and 20% of the road was built in the second week. How many meters are left to be repaired?
乐平镇南街村要修一条640米的景观大道，第一周修了这条路的(1/4)，第二周修了这条路的20%，还剩多少米没有修？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/4) - (1/5)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">640 * (11/20)</gadget>
<output>352</output>

<result>352</result>