When the little sloppy calculates an addition, he regards the 3 in the hundreds place as 5, the 8 in the tens place as 4, and the 1 in the ones place as 5. The sum obtained is 2340, then the correct answer how many.
小马虎在计算一道加法时，把一个加数百位上的3看作5，十位上的8看作4，把个位上的1看作5，所得的和是2340，那么正确的答案是多少．
<gadget id="calculator">500 - 300</gadget>
<output>200</output>

<gadget id="calculator">80 - 40</gadget>
<output>40</output>

<gadget id="calculator">200 - 40</gadget>
<output>160</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">160 + 4</gadget>
<output>164</output>

<gadget id="calculator">2_340 - 164</gadget>
<output>2_176</output>

<result>2_176</result>