Solve Vertical Addition: 27 + 85 Step-by-Step

Video Solution

Solution Steps

00:00 Solve

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

00:06 Start by adding ones with ones

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

00:12 Add 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 0 in the missing digits

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

00:32 And this is the solution to the problem

Step-by-Step Solution

To solve this problem, we'll follow the standard procedure for vertical addition:

Step 1: Write the numbers vertically, aligning by place value. Here, we have:
$27$

$+85$
Step 2: Add the digits in the units place (rightmost column).
$7 + 5 = 12$
Since 12 is 10 or more, we write down 2 in the units place and carry over 1 to the tens place.
Step 3: Move to the tens place and add the digits, including the carryover from the previous step.
$2 + 8 + 1 = 11$
Write down 11 in the tens place, as there are no more numbers to add.

Therefore, the sum is $112$ .

The correct answer is choice 3: 112.