A certain village wants to dig a 2,700-meter-long canal, and has already dug 1,050 meters. How many meters will be dug to finish half of the canal?
某村要挖一条长2700米的水渠，已经挖了1050米，再挖多少米正好挖完这条水渠的一半？
<gadget id="calculator">2_700 / 2</gadget>
<output>1_350</output>

<gadget id="calculator">1_350 - 1_050</gadget>
<output>300</output>

<result>300</result>