Add the following 17.4, 86.39, 9.435, 8.8 and 0.06

Answer

To solve the problem of adding the numbers 17.4, 86.39, 9.435, 8.8, and 0.06, we will follow these steps:

### Step 1: Write the numbers vertically, aligning the decimal points.
```
17.400
86.390
9.4350
8.8000
0.0600
```

### Step 2: Add the numbers starting from the rightmost column (the thousandths place).
- **Thousandths place**: 0 + 0 + 0 + 0 + 0 = 0
- **Hundredths place**: 0 + 9 + 3 + 0 + 6 = 18 (write 8 and carry over 1)
- **Tenths place**: 4 + 3 + 4 + 8 + 0 + 1 (carried over) = 20 (write 0 and carry over 2)
- **Units place**: 7 + 6 + 9 + 8 + 0 + 2 (carried over) = 32 (write 2 and carry over 3)
- **Tens place**: 1 + 8 + 0 + 0 + 0 + 3 (carried over) = 12 (write 2 and carry over 1)
- **Hundreds place**: 0 + 0 + 0 + 0 + 0 + 1 (carried over) = 1

### Step 3: Write down the final result.
Combining all the values we wrote down, we get:
```
122.085
```

### Final Answer:
The sum of 17.4, 86.39, 9.435, 8.8, and 0.06 is **122.085**.

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