Borrow over two zeros

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

1) Solve

8900

-8755

2) Solve

6800

-6466

3) Solve

6700

-6241

4) Solve

1900

-1588

5) Solve

2300

-1893

6) Solve

1700

-1207

7) Solve

5100

-4611

8) Solve

8600

-8374

9) Solve

8100

-7774

10) Solve

1200

-703

11) Solve

5500

-5032

12) Solve

7600

-7187

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