Solve Vertical Addition: 104 + 153 Step by Step

To solve this problem, we will perform vertical addition:

• Step 1: Align the numbers by place value:

  $\begin{aligned} &104 \\ + &153 \\ &\underline{\phantom{706}} \\ \end{aligned}$

• Step 2: Add the numbers starting from the rightmost digit (units).
  The units column: $4 + 3 = 7$
• Step 3: Move to the tens column and add.
  The tens column: $0 + 5 = 5$
• Step 4: Finally, add the hundreds column.
  The hundreds column: $1 + 1 = 2$

Putting it all together, the result of adding 104 and 153 is:

$\begin{aligned} &104 \\ + &153 \\ &\underline{257} \\ \end{aligned}$

Therefore, the solution to the problem is $257$.