A chemical fertilizer factory plans to produce 1,000 tons of fertilizers for the whole year, but actually completed 55% of the annual plan in the first half of the year and the second half of the year, how many tons did it actually exceed?
某化肥厂计划全年生产化肥1000吨，实际上半年和下半年各完成全年计划的55%，实际超产多少吨？
<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">(11/20) - 1</gadget>
<output>-9/20 = around -0.45</output>

<gadget id="calculator">(11/20) + (-9/20)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1_000 * (1/10)</gadget>
<output>100</output>

<result>100</result>