Write down the value of the underlined digit



4 8 4 8
   -
Value of the underlined digit ___________

7 9 3 3
-
Value of the underlined digit ___________
1 8 3 3
        -
Value of the underlined digit ___________

3 8 9 8
      -
Value of the underlined digit ___________

3 8 6 2
        -
Value of the underlined digit ___________

4 9 6 9
   -
Value of the underlined digit ___________

9 7 5 6
-
Value of the underlined digit ___________