Addition of 3-Digit Numbers with Regrouping

We will learn addition of 3-digit numbers with regrouping.

Addition of 3-Digit Numbers with Regrouping

1. Add 495 and 65.

Solution:

Step 1: Arrange the numbers vertically.

Step 2: Add the ones. 5 + 5 = 10 ones = 1 ten and 0 one. Write 0 in the ones column and carry over 1 to the tens column.

Step 3: Add the tens. 9 + 6 + 1 (carry over) = 16 tens = 1 hundred and 6 tens. Write 6 in the tens column and carry over 1 to the hundreds column.

Step 4: Add the hundreds. 4 +1 (carry over) = 5 hundreds. Write 5 in the hundreds column.

Addition of 3-Digit Numbers with Regrouping

Thus, 495 + 65 = 560

3-Digit Addition with Regrouping Video

Subscribe to our YouTube channel for the latest videos, updates, and tips.


2. Add 379 and 558

Solution:

Step 1: Arrange the numbers vertically.

Step 2: Add the ones column. 9 + 8 = 17 ones = 1 ten and 7 ones. Write 7 in the ones column and carry over 1 to the tens column.

Step 3: Add the tens column. 7 + 5 + 1 (carry over) = 13 tens = 1 hundred and 3 tens. Write 3 in the tens column and carry over 1 to the hundreds column.

Step 4: Add the hundreds column. 3 + 5 + 1 (carry over) = 9 hundreds.

Addition of Two 3-Digit Numbers with Regrouping

Thus 379 + 558 = 937


3. Let us add 329 and 156.

Write the numbers one below the other as shown.

Add Two 3-Digit Numbers

Step I: Add the ones.

9 ones + 6 ones = 15 ones

Regroup: 15 ones = 1 ten and 5 ones

Write 5 in the ones place.

Carry over 1 ten and write it under 'T'.


Step II: Add the tens.

1 ten (carried over) + 2 tens + 5 tens = 8 tens

Write 8 in the tens place.


Step III: Add the hundreds.

3 hundreds + 1 hundred = 4 hundreds

Write 4 in the hundreds place.

The sum is 485.


4. Let us add 362 and 475.

Write the numbers one below the other as shown.

Add Two Three-Digit Numbers

Step I: Add the ones.

2 ones + 5 ones = 7 ones

Write 7 in the ones place.


Step II: Add the tens.

6 tens + 7 tens = 13 tens

Regroup: 13 tens = 1 hundred and 3 tens

Write 3 in the tens place.

Carry over 1 hundred and write it under 'H'.


Step III: Add the hundreds.

1 hundred (carried over) + 3 hundreds + 4 hundreds = 8 hundreds

Write 8 in the hundreds place.


The sum is 837.


5. Let us and 365 and 267.

Here we need to regroup twice.

Write the numbers one below the other as shown.

Addition of 3-Digit Numbers with Regrouping Twice

Step I: Add the ones.

5 ones + 7 ones = 12 ones

Regroup: 12 ones = 1 ten and 2 ones

Write 2 in the ones place.

Carry over 1 ten and write it under 'T'.


Step II: Add the tens.

1 ten (carried over) + 6 tens + 6 tens = 13 tens

Regroup: 13 tens = 1 hundred and 3 tens

Write 3 in the tens place.

Carry over 1 hundred and write it under 'H'.


Step III: Add the hundreds.

1 hundred (carried over) + 3 hundreds + 2 hundreds = 6 hundreds

Write 6 under 'H'.


The sum is 632.


Word Problems on Addition of 3-Digit Numbers with Regrouping:

5. There are 274 birds in the park. 149 more join them. How many birds are there in the park?

Addition of 3-Digit Numbers


Step I:

Add the ones first.

4 + 9 = 13 ones.

Write 3 under ones column and carry 1 ten to the tens column.

Problems on Addition of 3-Digit Numbers


Step II:

Next, add the tens.

1 + 7 + 4 = 12 tens.

Write 2 under tens column and carry 1 to the hundreds column.

Addition of 3-Digit Numbers with Regrouping


Step III:

Finally, add the hundreds.

1 + 2 + 1 = 4 hundreds.

Write 4 under hundreds column.

Thus, there are 423 birds in all.


Worksheet on Addition of 3-Digit Numbers with Regrouping:

I. Add the following numbers:

(i) 973 + 18

(ii) 536 + 69

(iii) 797 + 26

(iv) 479 + 32

(v) 284 + 33

(vi) 529 + 74

(vii) 664 + 9

(viii) 708 + 12

(ix) 675 + 38

(x) 468 + 68

(xi) 209 + 84

(xii) 900 + 92

(xiii) 421 + 79

(xiv) 579 + 78

(xv) 251 + 84

(xvi) 676 + 35


Answer:

I. (i) 981

(ii) 605

(iii) 826

(iv) 511

(v) 317

(vi) 603

(vii) 673

(viii) 740

(ix) 713

(x) 536

(xi) 393

(xii) 992

(xiii) 500

(xiv) 657

(xv) 335

(xvi) 711

 

II. Add the following numbers:

(i) 257 + 483

(ii) 559 + 207

(iii) 357 + 376

(iv) 436 + 354

(v) 618 + 162

(vi) 428 + 357

(vii) 364 + 546

(viii) 518 + 293

(ix) 329 + 600

(x) 533 + 428

(xi) 442 + 279

(xii) 269 + 542

(xiii) 364 + 263

(xiv) 490 + 240

(xv) 836 + 157

(xvi) 680 + 255


Answer:

II. (i) 740

(ii) 766

(iii) 733

(iv) 790

(v) 780

(vi) 785

(vii) 910

(viii) 811

(ix) 929

(x) 961

(xi) 721

(xii) 811

(xiii) 627

(xiv) 730

(xv) 993

(xvi) 935


III. Add the following 3-digit numbers with regrouping twice as shown.

(i)

           H      T     O

            1      1

           2      3     5

      +          8     8

           3     2     3                 ____________

(ii)

           H      T     O

           7      6     9

      +          3     4

      ____________

(iii)

           H      T     O

           3      5     7

      +          8     4

      ____________

(iv)

           H      T     O

           5      9     6

      +   2      6     5

      ____________

(v)

           H      T     O

           2      4     5

      +   1      7     7

      ____________

(vi)

           H      T     O

           3      2     9

      +   3      9     2

      ____________

(vii)

           H      T     O

           1      4     9

      +   5      7     6

      ____________

(viii)

           H      T     O

           4      6     5

      +   3      5     9

      ____________

Answer:

III. (ii) 803

(iii) 441

(iv) 861

(v) 422

(vi) 721

(vii) 725

(viii) 824



IV. Worksheet on Word Problems on Addition of 3-Digit Numbers with Regrouping:

(i) Christina bought 88 mangoes and 154 apples. How many fruits did she buy in all?

(ii) Austin scored 25, 118, 92 and 29 runs in four matches. How many runs did he score in all?


Answer:

IV. 242 fruits

(ii) 264 runs

You might like these





3rd Grade Math Lessons

From Addition of 3-Digit Numbers with Regrouping  to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.




Share this page: What’s this?

Recent Articles

  1. How to Do Long Division? | Method | Steps | Examples | Worksheets |Ans

    Apr 20, 25 11:46 AM

    Long Division and Short Division Forms
    As we know that the division is to distribute a given value or quantity into groups having equal values. In long division, values at the individual place (Thousands, Hundreds, Tens, Ones) are dividend…

    Read More

  2. Word Problems on Division | Examples on Word Problems on Division

    Apr 20, 25 11:17 AM

    Word Problem on Division
    Word problems on division for fourth grade students are solved here step by step. Consider the following examples on word problems involving division: 1. $5,876 are distributed equally among 26 men. H…

    Read More

  3. Subtraction of 4-Digit Numbers | Subtract Numbers with Four Digit

    Apr 20, 25 10:27 AM

    Properties of Subtraction of 4-Digit Numbers
    We will learn about the subtraction of 4-digit numbers (without borrowing and with borrowing). We know when one number is subtracted from another number the result obtained is called the difference.

    Read More

  4. Subtraction without Regrouping |4-Digit, 5-Digit & 6-Digit Subtraction

    Apr 20, 25 10:25 AM

    Subtraction without Regrouping
    We will learn subtracting 4-digit, 5-digit and 6-digit numbers without regrouping. We first arrange the numbers one below the other in place value columns and then subtract the digits under each colum…

    Read More

  5. Worksheets on Missing Numbers from 1 to 20 | Counting Missing Numbers

    Apr 20, 25 10:17 AM

    Printable worksheets on missing numbers
    Printable worksheets on missing numbers from 1 to 20 help the kids to practice counting of the numbers.

    Read More