Solve Addition Problem: 936 + 79 in Vertical Format

Video Solution

Solution Steps

00:00 Solve

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

00:06 Let's start by multiplying ones with ones

00:09 Write down the ones, add 1 to the tens

00:13 Multiply tens with tens, remember to add 1 to the calculation

00:18 Write down tens in tens place, add 1 to hundreds

00:22 Write 0 in the missing digits

00:25 Multiply hundreds with hundreds, remember to add 1

00:28 Write down the hundreds in hundreds place, add 1 to thousands

00:31 Write 0 in the missing digits

00:34 Multiply thousands with thousands, and write in thousands place

00:38 And this is the solution to the problem

Step-by-Step Solution

To solve this problem, we'll proceed with vertical addition:

Align the numbers so that their place values line up:

$\begin{array}{c} & 936 \\ + & 79 \\ \hline \end{array}$

Add the units digits: $6 + 9 = 15$ . Place the 5 in the units column and carry over the 1 to the tens column.

Add the tens digits and the carried-over 1: $3 + 7 + 1 = 11$ . Place 1 in the tens column and carry over the 1 to the hundreds column.

Add the hundreds digits and the carried-over 1: $9 + 1 = 10$ . Since this is the leftmost column, write down the entire value as it is.

The resulting sum is:

$\begin{array}{c} & 936 \\ + & 79 \\ \hline & 1015 \\ \end{array}$

Therefore, the correct answer is $1015$ .