A village has dug a 2,500-meter canal, and 60% of the total length has been dug. How many meters are left to be dug?
某村挖一条2500米的水渠，已经挖了全长的60%，还剩多少米没有挖？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2_500 * (2/5)</gadget>
<output>1_000</output>

<result>1_000</result>