When Xiao Ming does addition, he regards the 6 in the ones place of an addend as 0, and the 7 in the tens place as 5, and the result is 67. How much is this question actually worth?
小明做加法时，把一个加数的个位上的6看成0，把十位上的7看成5，结果得67，这道题实际应得多少．
<gadget id="calculator">67 - 50</gadget>
<output>17</output>

<gadget id="calculator">17 + 76</gadget>
<output>93</output>

<result>93</result>