When the little sloppy calculated 1.39 plus one decimal place, he misaligned the last digit of the number, and the result was 1.84. What is the correct result?
小马虎计算1.39加一位小数时，由于错把数的末位对齐了，得到的结果是1.84．正确的结果是多少？
<gadget id="calculator">1.84 - 1.39</gadget>
<output>0.45</output>

<gadget id="calculator">0.45 * 10</gadget>
<output>4.5</output>

<gadget id="calculator">1.39 + 4.5</gadget>
<output>5.89</output>

<result>5.89</result>