When doing subtraction calculations, Xiaotong mistook the 6 in the tens digit to be subtracted as 9, and the 1 in the ones digit as 7, and the resulting difference was 146. What is the correct difference?
小彤在做减法计算时，把被减数十位上的6错看成9，把个位上的1错看成7，结果得到的差是146，正确的差是多少？
<gadget id="calculator">90 - 60</gadget>
<output>30</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">30 + 6</gadget>
<output>36</output>

<gadget id="calculator">146 - 36</gadget>
<output>110</output>

<result>110</result>