Borrow over three zeros

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

1) Solve

90000

-7771

2) Solve

50000

-6276

3) Solve

40000

-6915

4) Solve

70000

-9031

5) Solve

70000

-3994

6) Solve

40000

-7420

7) Solve

20000

-1968

8) Solve

50000

-6136

9) Solve

80000

-9181

10) Solve

10000

-7509

11) Solve

90000

-9370

12) Solve

80000

-4221