Solve Two-Digit Addition: 53 + 68 Using Column Method

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 combining ones with ones

00:09 Write down the ones, and remember to carry 1 up

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

00:19 Write down the tens in the tens place, and carry 1 to hundreds

00:23 Write down the tens in the tens place, and carry 1 to hundreds

00:29 Combine hundreds with hundreds, and write in the appropriate position

00:32 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll add the numbers 53 and 68 using vertical addition. Follow these steps:

Step 1: Align the numbers vertically by place value:

\begin{aligned} &53 \\ + &68 \\ \end{aligned}

Step 2: Add the units digits (rightmost column):

$3 + 8 = 11$

The result is 11. Write down 1 in the units column, and carry over 1 to the tens column.

Step 3: Add the tens digits (leftmost column), including the carry:

$5 + 6 + 1 = 12$

Write down 2 in the tens column, and carry over 1 to the hundreds column. This gives us a final result:

\begin{aligned} &121 \\ \end{aligned}

Therefore, the correct answer is $121$ .