Calculate the Sum: 7831 + 673 in Vertical Format

Video Solution

Solution Steps

00:05 Let's get started by solving the problem.

00:09 Each time, combine two digits carefully, like a puzzle.

00:13 Start by adding the ones digits together.

00:17 Then, place the result in the ones column.

00:20 Next, add the tens digits.

00:23 Place the result in the tens column. Don't forget to add 1 to the hundreds!

00:28 Now, add the hundreds digits. Include that extra 1.

00:33 Put the result in the hundreds column and add 1 to the thousands.

00:38 Place a zero in any missing spots.

00:41 Add the thousands digits, and remember the extra 1.

00:46 Place the final number in the thousands column.

00:49 And that's how we solve it! Great work!

Step-by-Step Solution

To solve this problem, we'll follow these steps:

$\begin{aligned} &7831 \\ +& \\ &~~673 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

The unit's column: $1 + 3 = 4$ . Write 4 under the units column.

Add: $3 + 7 = 10$ . Write 0 under the tens and carry 1 to the hundreds column.

Add: $8 + 6 = 14$ , and don't forget the carried 1, making it $15$ .

Write 5 under the hundreds and carry 1 to the thousands.

Add: $7 + 1 = 8$ . Don't forget the carried 1, making it $8$ .

Write 8 under the thousands.

The sum of the numbers is:

$\begin{aligned} &7831 \\ +& \\ &~~673 \\ &\underline{\phantom{776}} & \\ &8504 \\ \end{aligned}$

Therefore, the sum of 7831 and 673 is $\mathbf{8504}$ .

This corresponds to the choice: :

8504