Calculate the Sum: 847 Plus 77 in Vertical Format

Video Solution

Solution Steps

00:00 Solve

00:03 Each time consider combining 2 digits, and then place

00:05 Let's start by combining ones with ones

00:08 Place the ones, add 1 to the tens

00:17 Combine tens with tens, remember to add 1 to the calculation

00:23 Place tens in tens, add 1 to hundreds

00:30 Place 0 in the missing digits

00:34 Combine hundreds with hundreds remember to add 1, place in hundreds

00:37 And this is the solution to the question

Step-by-Step Solution

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

Step 1: Set up the addition problem vertically, aligning the numbers by their place values.
Step 2: Add the digits column by column, starting from the rightmost position (units place).
Step 3: If the sum in any column is 10 or more, carry over to the next column.

Now, let's work through each step:

Given numbers are:

$\begin{aligned} & 847 \\ + & \phantom{} 77 \\ \end{aligned}$

Step 1: Start with the units place.

$7 + 7 = 14$ . Write down 4 in the units place, and carry over 1 to the tens place.

Step 2: Move to the tens place.

$4 + 7 = 11$ , plus the carried over 1 makes it 12. Write down 2 in the tens place, and carry over 1 to the hundreds place.

Step 3: Finally, add the hundreds place.

$8 + 0 = 8$ , plus the 1 carried over makes it 9. Write down 9 in the hundreds place.

The sum is:

$\begin{aligned} & 847 \\ + & \phantom{} 77 \\ \hline & 924 \\ \end{aligned}$

Therefore, the solution to the problem is $924$ .