Solve Vertical Addition: 65 + 18 Step by Step

Let's solve the problem of adding two numbers, 65 and 18, step-by-step using vertical addition:

• Step 1: Write the numbers vertically, aligning the tens and ones digits as follows:

$\begin{array}{c} \phantom{+}65 \\ +18 \\ \underline{\phantom{76}} \\ \end{array}$

• Step 2: Add the digits in the ones column. These digits are 5 and 8.

$5 + 8 = 13$

• Since the sum is 13, we place the 3 in the ones column and carry over the 1 to the tens column.

• Step 3: Move to the tens column. Add the digits in this column: 6 (from 65) and 1 (from 18), plus the 1 we carried over from the ones column.

$6 + 1 + 1 = 8$

• Step 4: Write 8 in the tens place.

$\begin{array}{c} \phantom{+}65 \\ +18 \\ \underline{\phantom{76}} \\ 83 \\ \end{array}$

Therefore, the sum of 65 and 18 is $\mathbf{83}$.