Write down the value of the underlined digit

5  7
--
Value of the underlined digit ___________
3  2
    --
Value of the underlined digit ___________

7  4
    --
Value of the underlined digit ___________

9  3
--
Value of the underlined digit ___________

1  4
--

Value of the underlined digit ___________

7  5
    --
Value of the underlined digit ___________

5  3
--

Value of the underlined digit ___________

8  7
--

Value of the underlined digit ___________