Math worksheet for subtracting thousandths with regrouping, ideal for classroom or home learning.

To solve these subtraction problems, we need to subtract the bottom number from the top number. Since these are decimals, it's important to line up the decimal points and make sure each place value (tenths, hundredths, thousandths) is aligned correctly. We’ll go one problem at a time.

---

Problem 1: 98.330 - 0.150

Align decimals:
```
98.330
- 0.150
--------
```

Subtract thousandths: 0 - 0 = 0
Hundredths: 3 - 5 → can’t do, borrow from tenths → 13 - 5 = 8
Tenths: after borrowing, 2 - 1 = 1
Ones: 8 - 0 = 8
Tens: 9 - 0 = 9

→ 98.180

---

Problem 2: 49.082 - 8.276

Align:
```
49.082
- 8.276
--------
```

Thousandths: 2 - 6 → borrow → 12 - 6 = 6
Hundredths: 7 (after borrow) - 7 = 0
Tenths: 9 (after borrow) - 2 = 7? Wait — let’s redo carefully.

Actually:

Start from right:

Thousandths: 2 < 6 → borrow from hundredths → but hundredths is 8 → becomes 7, thousandths becomes 12 → 12 - 6 = 6
Hundredths: 7 - 7 = 0
Tenths: 0 < 2 → borrow from ones → ones is 9 → becomes 8, tenths becomes 10 → 10 - 2 = 8
Ones: 8 - 8 = 0
Tens: 4 - 0 = 4

Wait — actually, 49.082 minus 8.276:

Let me write it with placeholders:

```
49.082
- 8.276
---------
```

From right:

Thousandths: 2 - 6 → borrow → 12 - 6 = 6 (hundredths digit was 8, now 7)
Hundredths: 7 - 7 = 0
Tenths: 0 - 2 → can't, so borrow from ones → ones is 9 → becomes 8, tenths becomes 10 → 10 - 2 = 8
Ones: 8 - 8 = 0
Tens: 4 - 0 = 4

So result: 40.806

Check: 40.806 + 8.276 = 49.082 → yes!

---

Problem 3: 83.593 - 54.458

```
83.593
- 54.458
--------
```

Thousandths: 3 - 8 → borrow → 13 - 8 = 5 (hundredths 9→8)
Hundredths: 8 - 5 = 3
Tenths: 5 - 4 = 1
Ones: 3 - 4 → can't → borrow from tens → 13 - 4 = 9 (tens 8→7)
Tens: 7 - 5 = 2

→ 29.135

Check: 29.135 + 54.458 = 83.593 → correct.

---

Problem 4: 87.230 - 0.160

```
87.230
- 0.160
--------
```

Thousandths: 0 - 0 = 0
Hundredths: 3 - 6 → borrow → 13 - 6 = 7 (tenths 2→1)
Tenths: 1 - 1 = 0
Ones: 7 - 0 = 7
Tens: 8 - 0 = 8

→ 87.070

---

Problem 5: 60.024 - 8.317

```
60.024
- 8.317
--------
```

Thousandths: 4 - 7 → borrow → 14 - 7 = 7 (hundredths 2→1)
Hundredths: 1 - 1 = 0
Tenths: 0 - 3 → can't → borrow from ones → ones is 0 → can't → borrow from tens → tens 6→5, ones become 10, then borrow for tenths → ones 10→9, tenths become 10 → 10 - 3 = 7
Ones: 9 - 8 = 1
Tens: 5 - 0 = 5

→ 51.707

Check: 51.707 + 8.317 = 60.024 → yes.

---

Problem 6: 93.693 - 56.458

```
93.693
- 56.458
--------
```

Thousandths: 3 - 8 → borrow → 13 - 8 = 5 (hundredths 9→8)
Hundredths: 8 - 5 = 3
Tenths: 6 - 4 = 2
Ones: 3 - 6 → borrow → 13 - 6 = 7 (tens 9→8)
Tens: 8 - 5 = 3

→ 37.235

Check: 37.235 + 56.458 = 93.693 → correct.

---

Problem 7: 15.949 - 0.995

```
15.949
- 0.995
--------
```

Thousandths: 9 - 5 = 4
Hundredths: 4 - 9 → borrow → 14 - 9 = 5 (tenths 9→8)
Tenths: 8 - 9 → borrow → 18 - 9 = 9 (ones 5→4)
Ones: 4 - 0 = 4
Tens: 1 - 0 = 1

→ 14.954

Check: 14.954 + 0.995 = 15.949 → yes.

---

Problem 8: 44.295 - 6.609

```
44.295
- 6.609
--------
```

Thousandths: 5 - 9 → borrow → 15 - 9 = 6 (hundredths 9→8)
Hundredths: 8 - 0 = 8
Tenths: 2 - 6 → borrow → 12 - 6 = 6 (ones 4→3)
Ones: 3 - 6 → borrow → 13 - 6 = 7 (tens 4→3)
Tens: 3 - 0 = 3

→ 37.686

Check: 37.686 + 6.609 = 44.295 → yes.

---

Problem 9: 71.900 - 68.402

```
71.900
- 68.402
--------
```

Thousandths: 0 - 2 → borrow → 10 - 2 = 8 (hundredths 0→9, but wait — hundredths is 0, so need to borrow from tenths)

Better step-by-step:

Thousandths: 0 - 2 → borrow from hundredths → but hundredths is 0 → borrow from tenths → tenths is 9 → becomes 8, hundredths becomes 10, then borrow for thousandths → hundredths 10→9, thousandths becomes 10 → 10 - 2 = 8
Hundredths: 9 - 0 = 9
Tenths: 8 - 4 = 4
Ones: 1 - 8 → can't → borrow from tens → 11 - 8 = 3 (tens 7→6)
Tens: 6 - 6 = 0

→ 3.498

Check: 3.498 + 68.402 = 71.900 → yes.

---

Problem 10: 47.193 - 6.466

```
47.193
- 6.466
--------
```

Thousandths: 3 - 6 → borrow → 13 - 6 = 7 (hundredths 9→8)
Hundredths: 8 - 6 = 2
Tenths: 1 - 4 → borrow → 11 - 4 = 7 (ones 7→6)
Ones: 6 - 6 = 0
Tens: 4 - 0 = 4

→ 40.727

Check: 40.727 + 6.466 = 47.193 → yes.

---

Problem 11: 70.073 - 1.866

```
70.073
- 1.866
--------
```

Thousandths: 3 - 6 → borrow → 13 - 6 = 7 (hundredths 7→6)
Hundredths: 6 - 6 = 0
Tenths: 0 - 8 → can't → borrow from ones → ones is 0 → borrow from tens → tens 7→6, ones become 10, then borrow for tenths → ones 10→9, tenths become 10 → 10 - 8 = 2
Ones: 9 - 1 = 8
Tens: 6 - 0 = 6

→ 68.207

Check: 68.207 + 1.866 = 70.073 → yes.

---

Problem 12: 93.920 - 45.678

```
93.920
- 45.678
--------
```

Thousandths: 0 - 8 → borrow → 10 - 8 = 2 (hundredths 2→1)
Hundredths: 1 - 7 → borrow → 11 - 7 = 4 (tenths 9→8)
Tenths: 8 - 6 = 2
Ones: 3 - 5 → borrow → 13 - 5 = 8 (tens 9→8)
Tens: 8 - 4 = 4

→ 48.242

Check: 48.242 + 45.678 = 93.920 → yes.

---

Final Answers:

1. 98.180
2. 40.806
3. 29.135
4. 87.070
5. 51.707
6. 37.235
7. 14.954
8. 37.686
9. 3.498
10. 40.727
11. 68.207
12. 48.242

Final Answer:
[98.180, 40.806, 29.135, 87.070, 51.707, 37.235, 14.954, 37.686, 3.498, 40.727, 68.207, 48.242]