Add the sum of `36.67 and 42.098` to the sum of `54.66 and 12.34.`

Answer

To solve the question, we will follow these steps:

### Step 1: Add 36.67 and 42.098
1. Align the numbers by their decimal points:
```
36.670
+ 42.098
---------
```
2. Start adding from the rightmost digit:
- Thousandths place: 0 + 8 = 8
- Hundredths place: 7 + 9 = 16 (write 6, carry 1)
- Tenths place: 6 + 0 + 1 (carry) = 7
- Units place: 6 + 2 = 8
- Tens place: 3 + 4 = 7
3. The sum is:
```
36.670
+ 42.098
---------
78.768
```

### Step 2: Add 54.66 and 12.34
1. Align the numbers by their decimal points:
```
54.660
+ 12.340
---------
```
2. Start adding from the rightmost digit:
- Thousandths place: 0 + 0 = 0
- Hundredths place: 6 + 4 = 10 (write 0, carry 1)
- Tenths place: 6 + 3 + 1 (carry) = 10 (write 0, carry 1)
- Units place: 4 + 2 + 1 (carry) = 7
- Tens place: 5 + 1 = 6
3. The sum is:
```
54.660
+ 12.340
---------
67.000
```

### Step 3: Add the results from Step 1 and Step 2
1. Now, we will add the two sums we calculated:
```
78.768
+ 67.000
---------
```
2. Start adding from the rightmost digit:
- Thousandths place: 8 + 0 = 8
- Hundredths place: 6 + 0 = 6
- Tenths place: 7 + 0 = 7
- Units place: 8 + 7 = 15 (write 5, carry 1)
- Tens place: 7 + 6 + 1 (carry) = 14 (write 4, carry 1)
3. The final sum is:
```
78.768
+ 67.000
---------
145.768
```

### Final Answer:
The final result is **145.768**.

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