Solve the Addition Problem: 215 + 3 in Vertical Format

Video Solution

Solution Steps

00:00 Solve

00:03 Each time we calculate the sum of 2 digits, and then we substitute

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

00:12 Place 0 in the missing digits

00:15 Add the tens, and place in tens position

00:18 Place 0 in the missing digits

00:21 Add the hundreds, and place in hundreds position

00:24 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll perform vertical addition by following these steps:

Step 1: Align the numbers 215 and 3 vertically, ensuring the rightmost digits (the ones place) line up:

$\begin{array}{r} 215 \\ + \phantom{1}3 \\ \underline{\phantom{776}} \\ \end{array}$

Step 2: Add the digits in the ones place: $5 + 3 = 8$ . Write 8 in the ones place of the sum.
Step 3: Move to the tens place. Since there is no digit in the tens place for 3, we add $1 + 0 = 1$ . Write 1 in the tens place of the sum.
Step 4: For the hundreds place, there is only the digit 2 from 215, so write 2 in the hundreds place of the sum.

The resulting sum is:

$\begin{array}{r} \phantom{1}218 \\ \end{array}$

Therefore, the solution to the problem is $218$ .