The farm tool factory plans to produce 3,000 small farm tools a month, but actually produced 2,500 in half a month. If the full-month production is required to exceed the plan (3/10), how many more will be produced in the second half of the month?
农具厂计划一个月生产小农具3000件，实际上半月生产了2500件，如果要求全月生产量超过计划的(3/10)，下半月还要生产多少件？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">3_000 * (13/10)</gadget>
<output>3_900</output>

<gadget id="calculator">3_900 - 2_500</gadget>
<output>1_400</output>

<result>1_400</result>