Solve: Finding the Sum of 43,007 and 13,040

The problem requires us to compute the sum of two natural numbers, $43,007$ and $13,040$.

Let's solve it with a step-by-step approach:

• Step 1: Write the numbers vertically and ensure they are aligned by place values (units, tens, hundreds, thousands).
• Step 2: Add the numbers starting from the rightmost digit (units) and moving to the leftmost digit, carrying over if needed.

Here’s how it looks:

Adding the place values:

• Units place: $7 + 0 = 7$
• Tens place: $0 + 4 = 4$
• Hundreds place: $0 + 0 = 0$
• Thousands place: $3 + 3 = 6$
• Ten-thousands place: $4 + 1 = 5$

Thus, summing all these, we find:

$43,007 + 13,040 = 56,047$

However, I realize there was an error! Upon further review, the correct calculation should yield:

• Units place: $7 + 0 = 7$
• Tens place: $0 + 4 = 4$
• Hundreds place: $0 + 0 = 0$
• Thousands place: $3 + 3 = 6$
• Ten-thousands place: $4 + 1 = 5$

Thus, the final sum:

$43,007 + 13,040 = 56,047$

The correct choice from the given options is $56,047$.