3 Digit Subtraction Worksheets - Free Printable

Let's solve each of the 3-digit subtraction problems step by step. I'll go through them one by one and explain the process, especially where borrowing is needed.

---

1) 262 – 134

```
262
– 134
-----
```

- Ones place: 2 – 4 → Can't do, so borrow 1 from tens.
- 12 – 4 = 8
- Tens place: 5 (after borrowing) – 3 = 2
- Hundreds place: 2 – 1 = 1

✔ Answer: 128

---

2) 347 – 165

```
347
– 165
-----
```

- Ones: 7 – 5 = 2
- Tens: 4 – 6 → Can't do, borrow from hundreds.
- 14 – 6 = 8
- Hundreds: 2 (after borrowing) – 1 = 1

✔ Answer: 182

---

3) 615 – 152

```
615
– 152
-----
```

- Ones: 5 – 2 = 3
- Tens: 1 – 5 → Can't do, borrow from hundreds.
- 11 – 5 = 6
- Hundreds: 5 (after borrowing) – 1 = 4

✔ Answer: 463

---

4) 285 – 132

```
285
– 132
-----
```

- Ones: 5 – 2 = 3
- Tens: 8 – 3 = 5
- Hundreds: 2 – 1 = 1

✔ Answer: 153

---

5) 490 – 154

```
490
– 154
-----
```

- Ones: 0 – 4 → Can't do, borrow from tens.
- Tens digit is 9 → becomes 8, ones become 10
- 10 – 4 = 6
- Tens: 8 – 5 = 3
- Hundreds: 4 – 1 = 3

✔ Answer: 336

---

6) 639 – 57

Note: 57 is a 2-digit number. Align it to the right:

```
639
– 57
-----
```

- Ones: 9 – 7 = 2
- Tens: 3 – 5 → Can't do, borrow from hundreds.
- 13 – 5 = 8
- Hundreds: 5 (after borrowing) – 0 = 5

✔ Answer: 582

---

7) 376 – 255

```
376
– 255
-----
```

- Ones: 6 – 5 = 1
- Tens: 7 – 5 = 2
- Hundreds: 3 – 2 = 1

✔ Answer: 121

---

8) 362 – 236

```
362
– 236
-----
```

- Ones: 2 – 6 → Can't do, borrow from tens.
- 12 – 6 = 6
- Tens: 5 (after borrowing) – 3 = 2
- Hundreds: 3 – 2 = 1

✔ Answer: 126

---

9) 508 – 77

```
508
– 77
-----
```

- Ones: 8 – 7 = 1
- Tens: 0 – 7 → Can't do, borrow from hundreds.
- Hundreds: 5 → 4, tens: 0 → 10
- But we need to borrow again for tens: 10 → 9, ones: 10 → 11? Wait — better way:

Actually:
- Tens: 0 – 7 → can’t, so borrow from hundreds → 5 becomes 4, tens become 10
- Now subtract tens: 10 – 7 = 3
- Ones: 8 – 7 = 1

Wait! But we already used the tens digit.

Let’s re-align:

```
508
– 77
-----
```

- Ones: 8 – 7 = 1
- Tens: 0 – 7 → can't, so borrow from hundreds.
- Hundreds: 5 → 4, tens: 0 → 10
- Now: 10 – 7 = 3
- Hundreds: 4 – 0 = 4

✔ Answer: 431

---

10) 906 – 134

```
906
– 134
-----
```

- Ones: 6 – 4 = 2
- Tens: 0 – 3 → can't, borrow from hundreds.
- Hundreds: 9 → 8, tens: 0 → 10
- 10 – 3 = 7
- Hundreds: 8 – 1 = 7

✔ Answer: 772

---

11) 356 – 138

```
356
– 138
-----
```

- Ones: 6 – 8 → can't, borrow from tens.
- Tens: 5 → 4, ones: 6 → 16
- 16 – 8 = 8
- Tens: 4 – 3 = 1
- Hundreds: 3 – 1 = 2

✔ Answer: 218

---

12) 624 – 155

```
624
– 155
-----
```

- Ones: 4 – 5 → can't, borrow from tens.
- Tens: 2 → 1, ones: 4 → 14
- 14 – 5 = 9
- Tens: 1 – 5 → can't, borrow from hundreds.
- Hundreds: 6 → 5, tens: 1 → 11
- 11 – 5 = 6
- Hundreds: 5 – 1 = 4

✔ Answer: 469

---

13) 475 – 39

```
475
– 39
-----
```

- Ones: 5 – 9 → can't, borrow from tens.
- Tens: 7 → 6, ones: 5 → 15
- 15 – 9 = 6
- Tens: 6 – 3 = 3
- Hundreds: 4 – 0 = 4

✔ Answer: 436

---

14) 731 – 437

```
731
– 437
-----
```

- Ones: 1 – 7 → can't, borrow from tens.
- Tens: 3 → 2, ones: 1 → 11
- 11 – 7 = 4
- Tens: 2 – 3 → can't, borrow from hundreds.
- Hundreds: 7 → 6, tens: 2 → 12
- 12 – 3 = 9
- Hundreds: 6 – 4 = 2

✔ Answer: 294

---

15) 602 – 168

```
602
– 168
-----
```

- Ones: 2 – 8 → can't, borrow from tens.
- Tens: 0 → can't borrow → go to hundreds.
- Hundreds: 6 → 5, tens: 0 → 10
- Now borrow from tens: tens: 10 → 9, ones: 2 → 12
- 12 – 8 = 4
- Tens: 9 – 6 = 3
- Hundreds: 5 – 1 = 4

✔ Answer: 434

---

16) 817 – 526

```
817
– 526
-----
```

- Ones: 7 – 6 = 1
- Tens: 1 – 2 → can't, borrow from hundreds.
- Hundreds: 8 → 7, tens: 1 → 11
- 11 – 2 = 9
- Hundreds: 7 – 5 = 2

✔ Answer: 291

---

✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 1) 262 – 134 | 128 |
| 2) 347 – 165 | 182 |
| 3) 615 – 152 | 463 |
| 4) 285 – 132 | 153 |
| 5) 490 – 154 | 336 |
| 6) 639 – 57 | 582 |
| 7) 376 – 255 | 121 |
| 8) 362 – 236 | 126 |
| 9) 508 – 77 | 431 |
| 10) 906 – 134 | 772 |
| 11) 356 – 138 | 218 |
| 12) 624 – 155 | 469 |
| 13) 475 – 39 | 436 |
| 14) 731 – 437 | 294 |
| 15) 602 – 168 | 434 |
| 16) 817 – 526 | 291 |

Let me know if you'd like this as a printable sheet or with step-by-step diagrams!