Solve Vertical Addition: 75 + 15 Step-by-Step

Question

$\begin{aligned} &75 \\ +& \\ &15 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

00:00 Solve

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

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

00:09 Place the ones, and remember 1 above

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

00:19 Place in the tens position

00:22 And this is the solution to the question

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

Step 1: Align the numbers by place value:
$\begin{aligned} &75 \\ + &15 \\ \end{aligned}$
Step 2: Add the units digits: $5 + 5 = 10$ . Write down $0$ in the units place and regroup by carrying over $1$ to the tens place.
Step 3: Add the tens digits, including the carry: $7 + 1 + 1 = 9$ .

By following these steps, the sum of $75$ and $15$ is $90$ .

Therefore, the solution to the problem is $90$ .