Solve Three-Digit Addition: 712 + 198 Step by Step

$\begin{aligned} &712 \\ +& \\ &198 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

Video Solution

Solution Steps

00:00 Solve

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

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

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

00:13 Combine tens with tens, remember to add 1 to the calculation

00:19 Place tens in tens column, add 1 to hundreds

00:24 Combine hundreds with hundreds, remember to add 1

00:32 Place in hundreds

00:36 And this is the solution to the problem

Step-by-Step Solution

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

Step 1: Add the units digits: 2 (from 712) + 8 (from 198) = 10. Write down 0 and carry over 1 to the tens place.
Step 2: Add the tens digits and the carry: 1 (carry) + 1 (from 712) + 9 (from 198) = 11. Write down 1 and carry over 1 to the hundreds place.
Step 3: Add the hundreds digits and the carry: 1 (carry) + 7 (from 712) = 8 and 2 from 198 is not used here, we have already accounted it. Write down 9 as the total.

Thus, the final result of adding 712 and 198 is $910$ .