This grade six worksheet provides structured practice for subtracting decimals, guiding students to line up decimal points correctly.

Here are the step-by-step solutions for each problem on the worksheet. Remember to line up the decimal points and subtract just like whole numbers!

a. 4.66 - 2.09
1. Line them up:
```
4.66
- 2.09
```
2. Subtract the hundredths: 6 - 9 needs borrowing. Borrow from the tenths (6 becomes 5, 6 becomes 16). 16 - 9 = 7.
3. Subtract the tenths: 5 - 0 = 5.
4. Subtract the ones: 4 - 2 = 2.
5. Bring down the decimal point.
Result: 2.57

b. 8.776 - 0.808
1. Line them up:
```
8.776
- 0.808
```
2. Subtract thousandths: 6 - 8 needs borrowing. Borrow from tenths? No, borrow from hundredths. The 7 in hundredths becomes 6, and the 6 becomes 16. 16 - 8 = 8.
3. Subtract hundredths: 6 - 0 = 6.
4. Subtract tenths: 7 - 8 needs borrowing. Borrow from ones. The 8 becomes 7, and the 7 becomes 17. 17 - 8 = 9.
5. Subtract ones: 7 - 0 = 7.
Result: 7.968

c. 5.80 - 2.96
1. Line them up:
```
5.80
- 2.96
```
2. Subtract hundredths: 0 - 6 needs borrowing. Borrow from tenths. The 8 becomes 7, and the 0 becomes 10. 10 - 6 = 4.
3. Subtract tenths: 7 - 9 needs borrowing. Borrow from ones. The 5 becomes 4, and the 7 becomes 17. 17 - 9 = 8.
4. Subtract ones: 4 - 2 = 2.
Result: 2.84

d. 5.479 - 2.865
1. Line them up:
```
5.479
- 2.865
```
2. Subtract thousandths: 9 - 5 = 4.
3. Subtract hundredths: 7 - 6 = 1.
4. Subtract tenths: 4 - 8 needs borrowing. Borrow from ones. The 5 becomes 4, and the 4 becomes 14. 14 - 8 = 6.
5. Subtract ones: 4 - 2 = 2.
Result: 2.614

e. 8.64 - 2.432
1. Add a zero to make places equal: 8.640 - 2.432
2. Line them up:
```
8.640
- 2.432
```
3. Subtract thousandths: 0 - 2 needs borrowing. Borrow from hundredths. 4 becomes 3, 0 becomes 10. 10 - 2 = 8.
4. Subtract hundredths: 3 - 3 = 0.
5. Subtract tenths: 6 - 4 = 2.
6. Subtract ones: 8 - 2 = 6.
Result: 6.208

f. 7.653 - 2.147
1. Line them up:
```
7.653
- 2.147
```
2. Subtract thousandths: 3 - 7 needs borrowing. Borrow from hundredths. 5 becomes 4, 3 becomes 13. 13 - 7 = 6.
3. Subtract hundredths: 4 - 4 = 0.
4. Subtract tenths: 6 - 1 = 5.
5. Subtract ones: 7 - 2 = 5.
Result: 5.506

g. 5.2 - 3.15
1. Add a zero: 5.20 - 3.15
2. Line them up:
```
5.20
- 3.15
```
3. Subtract hundredths: 0 - 5 needs borrowing. Borrow from tenths. 2 becomes 1, 0 becomes 10. 10 - 5 = 5.
4. Subtract tenths: 1 - 1 = 0.
5. Subtract ones: 5 - 3 = 2.
Result: 2.05

h. 82.64 - 28.75
1. Line them up:
```
82.64
- 28.75
```
2. Subtract hundredths: 4 - 5 needs borrowing. Borrow from tenths. 6 becomes 5, 4 becomes 14. 14 - 5 = 9.
3. Subtract tenths: 5 - 7 needs borrowing. Borrow from ones. 2 becomes 1, 5 becomes 15. 15 - 7 = 8.
4. Subtract ones: 1 - 8 needs borrowing. Borrow from tens. 8 becomes 7, 1 becomes 11. 11 - 8 = 3.
5. Subtract tens: 7 - 2 = 5.
Result: 53.89

i. 443.2 - 186.1
1. Line them up:
```
443.2
- 186.1
```
2. Subtract tenths: 2 - 1 = 1.
3. Subtract ones: 3 - 6 needs borrowing. Borrow from tens. First 4 becomes 3, 3 becomes 13. 13 - 6 = 7.
4. Subtract tens: 3 - 8 needs borrowing. Borrow from hundreds. 4 becomes 3, 3 becomes 13. 13 - 8 = 5.
5. Subtract hundreds: 3 - 1 = 2.
Result: 257.1

j. 657.4 - 389.9
1. Line them up:
```
657.4
- 389.9
```
2. Subtract tenths: 4 - 9 needs borrowing. Borrow from ones. 7 becomes 6, 4 becomes 14. 14 - 9 = 5.
3. Subtract ones: 6 - 9 needs borrowing. Borrow from tens. 5 becomes 4, 6 becomes 16. 16 - 9 = 7.
4. Subtract tens: 4 - 8 needs borrowing. Borrow from hundreds. 6 becomes 5, 4 becomes 14. 14 - 8 = 6.
5. Subtract hundreds: 5 - 3 = 2.
Result: 267.5

Final Answer:
a. 2.57
b. 7.968
c. 2.84
d. 2.614
e. 6.208
f. 5.506
g. 2.05
h. 53.89
i. 257.1
j. 267.5