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

712+198776‾ \begin{aligned} &712 \\ +& \\ &198 \\ &\underline{\phantom{776}} & \\ \end{aligned}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:04 Let's solve this problem step by step.
00:07 First, we'll combine two digits at a time.
00:10 Let's begin by adding the ones place together.
00:14 After that, place the result and carry over any extra to the tens.
00:19 Now, add the tens place numbers, and don't forget to add the extra one.
00:25 Put the tens in the tens column and carry over one to the hundreds.
00:30 Next, add the hundreds together and remember to add one more.
00:36 Place the hundreds in the correct column.
00:40 And that's how we find the solution to this problem!

Step-by-step written solution

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1

Understand the problem

712+198776‾ \begin{aligned} &712 \\ +& \\ &198 \\ &\underline{\phantom{776}} & \\ \end{aligned}

2

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 910 910 .

3

Final Answer

910

Practice Quiz

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\( \begin{aligned} &83 \\ +& \\ &~~6 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)

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