When Xiao Ming was doing a subtraction problem, he regarded the subtrahend 98 as 89, and the result was 158. What should be the correct result?
小明在做一道减法题时，将减数98看成了89，得到的结果是158．正确的结果应该是多少？
<gadget id="calculator">158 + 89</gadget>
<output>247</output>

<gadget id="calculator">247 - 98</gadget>
<output>149</output>

<result>149</result>