When Xiaohong calculates the addition of two numbers, she mistakenly regards the 1 in the unit digit of one addend as 7, and the 8 in the tens digit of the other addition as 3, and the sum obtained is 1946. What is the correct answer to add numbers.
小红在计算两个数相加时，把一个加数个位上的1错误当作7，把另一个加数十位上的8错误地当作了3，所得的和是1946，原来两数相加的正确答案是多少．
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">50 - 6</gadget>
<output>44</output>

<gadget id="calculator">1_946 + 44</gadget>
<output>1_990</output>

<result>1_990</result>