When the little sloppy was doing a subtraction problem, he made a mistake of writing 8 for the 3 in the tens digit to be subtracted, and the result was a difference of 284. what is the correct difference
小马虎在做减法题时，把被减数十位上的3错写成8，结果得到的差是284．正确的差是多少
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">5 * 10</gadget>
<output>50</output>

<gadget id="calculator">284 - 50</gadget>
<output>234</output>

<result>234</result>