When the little sloppy calculated 2.53 plus a decimal, because he mistakenly aligned the end of the number, the result was 4.18. What should be the correct number.
小马虎在计算2.53加上一个一位小数时，由于错误地把数的末尾对齐，结果得到4.18．正确的得数应是多少．
<gadget id="calculator">2.53 + 16.5</gadget>
<output>19.03</output>

<result>19.03</result>