`4 + 4.44 + 4.44 + 4.04 + 444 - 20` = ?

Options

A. 480.8
B. 472.88
C. 495.22
D. 577.2

Answer

To solve the expression \( 4 + 4.44 + 4.44 + 4.04 + 444 - 20 \), we will follow these steps:

### Step 1: Add the numbers together
First, we will add all the numbers before subtracting 20.

\[ 4 + 4.44 + 4.44 + 4.04 + 444 \]

### Step 2: Perform the addition
Let's add them one by one:

1. Start with \( 4 + 4.44 \):
\[ 4 + 4.44 = 8.44 \]

2. Now add \( 4.44 \):
\[ 8.44 + 4.44 = 12.88 \]

3. Next, add \( 4.04 \):
\[ 12.88 + 4.04 = 16.92 \]

4. Finally, add \( 444 \):
\[ 16.92 + 444 = 460.92 \]

### Step 3: Subtract 20
Now we will subtract \( 20 \) from the total we just calculated:

\[ 460.92 - 20 \]

### Step 4: Perform the subtraction
Subtracting \( 20 \) from \( 460.92 \):

1. Subtract the whole number:
\[ 460.92 - 20 = 440.92 \]

### Final Answer
Thus, the final answer is:

\[ \boxed{440.92} \]

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