Subtract 3-digit numbers (Column)

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

1) Solve

879

-824

2) Solve

841

-801

3) Solve

541

-434

4) Solve

966

-758

5) Solve

631

-173

6) Solve

870

-716

7) Solve

906

-680

8) Solve

802

-678

9) Solve

994

-348

10) Solve

803

-137

11) Solve

495

-324

12) Solve

987

-321

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