Solve Vertical Addition: 81 + 8 Step by Step

Video Solution

Solution Steps

00:00 Solve

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

00:06 We'll start by combining ones with ones, we'll place the solution

00:09 We'll place 0 where there is no digit

00:12 We'll combine tens with tens, we'll place the solution

00:15 And this is the solution to the question

Step-by-Step Solution

To solve the given vertical addition problem, follow these steps:

Step 1: Align the numbers by place value: 81 has a tens digit (8) and a ones digit (1). The number 8 is placed under the ones digit.
Step 2: Start with the ones column: Add the digits $1 + 8$ . The sum of 1 and 8 is 9.
Step 3: Since the sum in the ones column is less than 10, there is no need to carry over a number to the tens column.
Step 4: Move to the tens column: There is no additional number under the 8, so it remains as 8.
Step 5: Combine these results to get the final sum: The tens digit is 8 and the ones digit is 9, resulting in the number 89.

Therefore, the solution to the problem is $89$ .