Fill in the missing digits to complete the subtraction problems.

Let’s solve each subtraction problem step by step. Remember: we are subtracting 3-digit numbers from 4-digit numbers, and there is no regrouping — that means in every column, the top digit is bigger than or equal to the bottom digit. We just fill in the missing digits so the math works.

We’ll go row by row, left to right.

---

First Row:

1.
```
_545
- _32
------
21_3
```

Look at the ones place: 5 - 2 = 3 → correct.
Tens place: 4 - 3 = 1 → correct.
Hundreds place: 5 - ? = 1 → so ? must be 4 (because 5 - 4 = 1)
Thousands place: ? - 0 = 2 → so ? must be 2 (since no thousands digit in subtrahend, it’s like subtracting 0)

So:
Top number: 2545
Bottom number: 432
Answer: 2113 → matches!

✔ First problem: 2545 - 432 = 2113

---

2.
```
67_8
- _90
------
630_
```

Ones place: 8 - 0 = 8 → so last digit of answer is 8
Tens place: ? - 9 = 0 → so ? must be 9 (9 - 9 = 0)
Hundreds place: 7 - ? = 3 → so ? must be 4 (7 - 4 = 3)
Thousands place: 6 - 0 = 6 → correct

So:
Top: 6798
Bottom: 490
Answer: 6308 → matches!

✔ Second problem: 6798 - 490 = 6308

---

3.
```
78_3
- _41
------
713_
```

Ones: 3 - 1 = 2 → so last digit of answer is 2
Tens: ? - 4 = 3 → so ? = 7 (7 - 4 = 3)
Hundreds: 8 - ? = 1 → so ? = 7 (8 - 7 = 1)
Thousands: 7 - 0 = 7 → correct

So:
Top: 7873
Bottom: 741
Answer: 7132 → matches!

✔ Third problem: 7873 - 741 = 7132

---

Second Row:

4.
```
_59_
- 517
------
8_82
```

Ones: ? - 7 = 2 → so ? = 9 (9 - 7 = 2)
Tens: 9 - 1 = 8 → correct
Hundreds: 5 - 5 = 0 → but answer shows “_” in hundreds place? Wait — answer is 8_82 → so thousands digit is 8, then a blank, then 8, then 2.

Wait — let’s write it clearly:

Top: _ 5 9 _
Minus: 5 1 7
Equals: 8 _ 8 2

So align by place value:

Thousands | Hundreds | Tens | Ones
? | 5 | 9 | ?
| 5 | 1 | 7
----------------------------------
8 | ? | 8 | 2

Ones: ? - 7 = 2 → ? = 9
Tens: 9 - 1 = 8 → good
Hundreds: 5 - 5 = 0 → so middle digit of answer is 0
Thousands: ? - 0 = 8 → so ? = 8

So top number: 8599
Subtract: 517
Answer: 8082 → yes! 8599 - 517 = 8082

✔ Fourth problem: 8599 - 517 = 8082

---

5.
```
4_87
- 5_4
------
425_
```

Align:

Thousands | Hundreds | Tens | Ones
4 | ? | 8 | 7
| 5 | ? | 4
----------------------------------
4 | 2 | 5 | ?

Ones: 7 - 4 = 3 → so last digit of answer is 3
Tens: 8 - ? = 5 → so ? = 3 (8 - 3 = 5)
Hundreds: ? - 5 = 2 → so ? = 7 (7 - 5 = 2)
Thousands: 4 - 0 = 4 → good

So top: 4787
Bottom: 534
Answer: 4253 → yes!

✔ Fifth problem: 4787 - 534 = 4253

---

6.
```
69_9
- 989
------
__00
```

Align:

Thousands | Hundreds | Tens | Ones
6 | 9 | ? | 9
| 9 | 8 | 9
----------------------------------
? | ? | 0 | 0

Ones: 9 - 9 = 0 → good
Tens: ? - 8 = 0 → so ? = 8
Hundreds: 9 - 9 = 0 → so second digit of answer is 0
Thousands: 6 - 0 = 6 → so first digit of answer is 6

Wait — answer is written as “__00”, meaning two blanks then 00 → so it’s a 4-digit answer: _ _ 0 0

So: 6989 - 989 = 6000 → yes!

Check: 6989 - 989 = 6000 → correct.

✔ Sixth problem: 6989 - 989 = 6000

---

Third Row:

7.
```
_826
- 42_
------
94_2
```

Align:

Thousands | Hundreds | Tens | Ones
? | 8 | 2 | 6
| 4 | 2 | ?
----------------------------------
9 | 4 | ? | 2

Ones: 6 - ? = 2 → so ? = 4
Tens: 2 - 2 = 0 → so middle digit of answer is 0
Hundreds: 8 - 4 = 4 → good
Thousands: ? - 0 = 9 → so ? = 9

So top: 9826
Bottom: 424
Answer: 9402 → yes!

✔ Seventh problem: 9826 - 424 = 9402

---

8.
```
57_9
- 73_
------
_040
```

Align:

Thousands | Hundreds | Tens | Ones
5 | 7 | ? | 9
| 7 | 3 | ?
----------------------------------
? | 0 | 4 | 0

Ones: 9 - ? = 0 → so ? = 9
Tens: ? - 3 = 4 → so ? = 7
Hundreds: 7 - 7 = 0 → good
Thousands: 5 - 0 = 5 → so first digit of answer is 5

So top: 5779
Bottom: 739
Answer: 5040 → yes!

✔ Eighth problem: 5779 - 739 = 5040

---

9.
```
_805
- _05
------
810_
```

Align:

Thousands | Hundreds | Tens | Ones
? | 8 | 0 | 5
| ? | 0 | 5
----------------------------------
8 | 1 | 0 | ?

Ones: 5 - 5 = 0 → so last digit of answer is 0
Tens: 0 - 0 = 0 → good
Hundreds: 8 - ? = 1 → so ? = 7
Thousands: ? - 0 = 8 → so ? = 8

So top: 8805
Bottom: 705
Answer: 8100 → yes!

✔ Ninth problem: 8805 - 705 = 8100

---

Now let’s list all the filled-in problems with missing digits replaced:

1. 2545 - 432 = 2113
2. 6798 - 490 = 6308
3. 7873 - 741 = 7132
4. 8599 - 517 = 8082
5. 4787 - 534 = 4253
6. 6989 - 989 = 6000
7. 9826 - 424 = 9402
8. 5779 - 739 = 5040
9. 8805 - 705 = 8100

All check out!

Final Answer:
The completed subtraction problems are:

1. 2545 - 432 = 2113
2. 6798 - 490 = 6308
3. 7873 - 741 = 7132
4. 8599 - 517 = 8082
5. 4787 - 534 = 4253
6. 6989 - 989 = 6000
7. 9826 - 424 = 9402
8. 5779 - 739 = 5040
9. 8805 - 705 = 8100