When the little sloppy was calculating an addition problem, he copied the 9 in the tens digit into 3, and the result was 718. What is the correct number?
小马虎在计算一道加法题时，把十位上的9抄成3，结果是718，正确的得数是多少？
<gadget id="calculator">90 - 30</gadget>
<output>60</output>

<gadget id="calculator">718 + 60</gadget>
<output>778</output>

<result>778</result>