Add the decimals:
72.8. 7.68, 16.23 and 0.7

Answer

To solve the problem of adding the decimals 72.8, 7.68, 16.23, and 0.7, we can follow these steps:

### Step-by-Step Solution:

1. **Align the Numbers**: Write the numbers one below the other, aligning the decimal points.
```
72.80
7.68
16.23
0.70
```

2. **Add Zeros for Clarity**: To make the addition easier, we can add trailing zeros to the numbers that do not have two decimal places. This gives us:
```
72.80
7.68
16.23
0.70
```

3. **Add the Decimal Column**: Start adding from the rightmost column (the decimal column).
- 0 + 8 + 3 + 0 = 11. Write down 1 and carry over 1.

4. **Add the Tenths Column**: Now, add the tenths column (the second column from the right):
- 8 + 6 + 2 + 7 + 1 (carry) = 24. Write down 4 and carry over 2.

5. **Add the Units Column**: Next, add the units column:
- 2 + 7 + 6 + 2 + 2 (carry) = 19. Write down 9 and carry over 1.

6. **Add the Tens Column**: Finally, add the tens column:
- 7 + 1 (carry) = 8. Write down 8.

7. **Combine the Results**: Now, combine all the results:
```
72.80
7.68
16.23
0.70
---------
97.41
```

### Final Answer:
The sum of 72.8, 7.68, 16.23, and 0.7 is **97.41**.

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