Changing Subtraction to Addition

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1.
1 point
2 - 5
2.
1 point
-3 - (-5) - 6
3.
1 point
14 - (-2)
4.
1 point
-10 - 2
5.
1 point
-19 - (-4)
6.
1 point
17 - 25
7.
1 point
12 - (-3)
8.
1 point
-32 - (-6)
9.
1 point
4 - 6 - (-19)
10.
1 point
-6 - 7