Subtract 4-digit numbers (Column)

Find the difference of the numbers below. Use regrouping where necessary.

1) Solve
4418
-3118
2) Solve
3622
-2078
3) Solve
9703
-7778
4) Solve
5627
-1477
5) Solve
4170
-2094
6) Solve
6308
-4952
7) Solve
7348
-6610
8) Solve
3053
-2137
9) Solve
9193
-4774
10) Solve
8021
-7804
11) Solve
8596
-4239
12) Solve
8862
-1650
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