Addition Problem: Solve 545 + 45 Using Vertical Format

Video Solution

Solution Steps

00:00 Solve

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

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

00:09 Place the ones, and add 1 to the tens

00:12 Add tens with tens, remember to add 1 to the calculation

00:15 Place in the tens position

00:19 Place 0 in the missing digits

00:22 Add hundreds with hundreds, place in hundreds position

00:25 And this is the solution to the question

Step-by-Step Solution

To solve the problem, we will perform vertical addition of the numbers $545$ and $45$ , as follows:

Step 1: Align the numbers correctly, placing the digits in each number in their appropriate columns:

$\begin{array}{c} \phantom{1}545 \\ \phantom{+}45\phantom{0} \\ \underline{\phantom{999}} \end{array}$

Step 2: Perform the addition column by column, starting from the rightmost column (the units place):

Units place: $5 + 5 = 10$ . Write down $0$ and carry over $1$ to the tens column.
Tens place: $4 + 4 = 8$ , plus the carry-over $1$ gives $9$ . Write $9$ in the tens column.
Hundreds place: The only digit is $5$ . So, write $5$ in the hundreds column.

Step 3: Write down the complete sum:

$\begin{array}{c} \phantom{1}545 \\ \phantom{+}45\phantom{0} \\ \underline{\phantom{999}} \\ \phantom{99}590 \end{array}$

Therefore, the sum of $545$ and $45$ is $590$ .