3 Digit Subtraction Practice Worksheet with Problems and Answers

It looks like you've uploaded a worksheet titled "3 Digit Subtraction: Regrouping Worksheet 1". The task is to solve the subtraction problems involving three-digit numbers, where regrouping (borrowing) is required.

Let's go through each problem step by step and solve them correctly.

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Problem Set:

We'll solve each subtraction problem one by one.

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#### 1.
```
233
- 97
-----
```

- 3 - 7 → can't do, borrow from tens place.
- 13 - 7 = 6
- Now, tens: 2 becomes 1 after borrowing; 1 - 9 → can't do, borrow from hundreds.
- Hundreds: 2 → 1, tens: 11 - 9 = 2
- Hundreds: 1 - 0 = 1

✔ Answer: 136

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#### 2.
```
656
- 177
-----
```

- 6 - 7 → borrow → 16 - 7 = 9
- Tens: 5 becomes 4; 4 - 7 → borrow → 14 - 7 = 7
- Hundreds: 6 becomes 5; 5 - 1 = 4

✔ Answer: 479

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#### 3.
```
642
- 466
-----
```

- 2 - 6 → borrow → 12 - 6 = 6
- Tens: 4 becomes 3; 3 - 6 → borrow → 13 - 6 = 7
- Hundreds: 6 becomes 5; 5 - 4 = 1

✔ Answer: 176

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#### 4.
```
618
- 439
-----
```

- 8 - 9 → borrow → 18 - 9 = 9
- Tens: 1 becomes 0; 0 - 3 → borrow → 10 - 3 = 7
- Hundreds: 6 becomes 5; 5 - 4 = 1

✔ Answer: 179

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#### 5.
```
686
- 581
-----
```

- 6 - 1 = 5
- 8 - 8 = 0
- 6 - 5 = 1

✔ Answer: 105

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#### 6.
```
791
- 13
-----
```

- 1 - 3 → borrow → 11 - 3 = 8
- Tens: 9 becomes 8; 8 - 1 = 7
- Hundreds: 7 - 0 = 7

✔ Answer: 778

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#### 7.
```
599
- 294
-----
```

- 9 - 4 = 5
- 9 - 9 = 0
- 5 - 2 = 3

✔ Answer: 305

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#### 8.
```
477
- 4
-----
```

- 7 - 4 = 3
- 7 - 0 = 7
- 4 - 0 = 4

✔ Answer: 473

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#### 9.
```
634
- 585
-----
```

- 4 - 5 → borrow → 14 - 5 = 9
- Tens: 3 becomes 2; 2 - 8 → borrow → 12 - 8 = 4
- Hundreds: 6 becomes 5; 5 - 5 = 0

✔ Answer: 49

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#### 10.
```
263
- 186
-----
```

- 3 - 6 → borrow → 13 - 6 = 7
- Tens: 6 becomes 5; 5 - 8 → borrow → 15 - 8 = 7
- Hundreds: 2 becomes 1; 1 - 1 = 0

✔ Answer: 77

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#### 11.
```
220
- 146
-----
```

- 0 - 6 → borrow → 10 - 6 = 4
- Tens: 2 becomes 1; 1 - 4 → borrow → 11 - 4 = 7
- Hundreds: 2 becomes 1; 1 - 1 = 0

✔ Answer: 74

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#### 12.
```
655
- 69
-----
```

- 5 - 9 → borrow → 15 - 9 = 6
- Tens: 5 becomes 4; 4 - 6 → borrow → 14 - 6 = 8
- Hundreds: 6 becomes 5; 5 - 0 = 5

✔ Answer: 586

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#### 13.
```
688
- 299
-----
```

- 8 - 9 → borrow → 18 - 9 = 9
- Tens: 8 becomes 7; 7 - 9 → borrow → 17 - 9 = 8
- Hundreds: 6 becomes 5; 5 - 2 = 3

✔ Answer: 389

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#### 14.
```
156
- 97
-----
```

- 6 - 7 → borrow → 16 - 7 = 9
- Tens: 5 becomes 4; 4 - 9 → borrow → 14 - 9 = 5
- Hundreds: 1 becomes 0; 0 - 0 = 0

✔ Answer: 59

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#### 15.
```
86
- 7
-----
```

This is a two-digit minus single-digit:
- 6 - 7 → borrow → 16 - 7 = 9
- Tens: 8 becomes 7; 7 - 0 = 7

✔ Answer: 79

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#### 16.
```
788
- 699
-----
```

- 8 - 9 → borrow → 18 - 9 = 9
- Tens: 8 becomes 7; 7 - 9 → borrow → 17 - 9 = 8
- Hundreds: 7 becomes 6; 6 - 6 = 0

✔ Answer: 89

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#### 17.
```
116
- 27
-----
```

- 6 - 7 → borrow → 16 - 7 = 9
- Tens: 1 becomes 0; 0 - 2 → borrow → 10 - 2 = 8
- Hundreds: 1 becomes 0; 0 - 0 = 0

✔ Answer: 89

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#### 18.
```
976
- 788
-----
```

- 6 - 8 → borrow → 16 - 8 = 8
- Tens: 7 becomes 6; 6 - 8 → borrow → 16 - 8 = 8
- Hundreds: 9 becomes 8; 8 - 7 = 1

✔ Answer: 188

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#### 19.
```
753
- 687
-----
```

- 3 - 7 → borrow → 13 - 7 = 6
- Tens: 5 becomes 4; 4 - 8 → borrow → 14 - 8 = 6
- Hundreds: 7 becomes 6; 6 - 6 = 0

✔ Answer: 66

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#### 20.
```
388
- 99
-----
```

- 8 - 9 → borrow → 18 - 9 = 9
- Tens: 8 becomes 7; 7 - 9 → borrow → 17 - 9 = 8
- Hundreds: 3 becomes 2; 2 - 0 = 2

✔ Answer: 289

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✔ Final Answers:

| Problem | Answer |
|--------|--------|
| 1 | 136 |
| 2 | 479 |
| 3 | 176 |
| 4 | 179 |
| 5 | 105 |
| 6 | 778 |
| 7 | 305 |
| 8 | 473 |
| 9 | 49 |
| 10 | 77 |
| 11 | 74 |
| 12 | 586 |
| 13 | 389 |
| 14 | 59 |
| 15 | 79 |
| 16 | 89 |
| 17 | 89 |
| 18 | 188 |
| 19 | 66 |
| 20 | 289 |

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