When Naughty is calculating a subtraction problem, he regards the 9 in the subtracted hundreds as 6, and the 7 in the tens of subtracted as 1, and the wrong answer is 234. The correct answer for this question is How many.
淘气在计算一道减法算式题时，将被减数百位上的9看成了6，将减数十位上的7看成了1，得到的错误答案是234，这道题的正确答案是多少．
<gadget id="calculator">90 - 60</gadget>
<output>30</output>

<gadget id="calculator">70 - 10</gadget>
<output>60</output>

<gadget id="calculator">243 + 30 + 60</gadget>
<output>333</output>

<result>333</result>