Calculate the Sum: 173 + 18 Addition Problem

Question

$\begin{aligned} &173 \\ +& \\ &~~18 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

00:00 Solve

00:03 Each time we calculate the sum of 2 digits, and then we place

00:06 Let's start by adding ones with ones

00:09 Place the ones, and add 1 to the tens

00:18 Add tens with tens, remember to add 1 to the calculation

00:24 Place 0 in the missing digits

00:33 Add hundreds with hundreds, place in hundreds

00:36 And this is the solution to the question

To solve this problem, we'll follow these steps:

Step 1: Align the numbers 173 and 18 by their rightmost digits. Write 173 above 18.
Step 2: Start adding from the ones column (rightmost). 3 (ones of 173) + 8 (ones of 18) = 11.
Step 3: Write down the 1 in the ones place and carry over the remaining 1 to the tens column.
Step 4: Move to the tens column. Add 7 (tens of 173) + 1 (tens of 18) = 8, plus the carried over 1 = 9.
Step 5: Write 9 in the tens place.
Step 6: Move to the hundreds column. Add 1 (hundreds of 173) with the carry, which is zero here, so it remains 1.

Therefore, the final sum of 173 and 18 is $191$ .

191