#### Solved Examples and Worksheet for Adding Whole Numbers with/without Regrouping

Q1The sum of the numbers 6,858 and 5,818 is __________.

A. 12,676
B. 12,670
C. 22,676
D. 10,676

Step: 1
Write the numbers along with their places and add.
Step: 2
 TTh Th H T O 1 1 6 8 5 8 5 8 1 8 1 2 6 7 6
Step: 3
The sum of the numbers 6,858 and 5,818 is 12,676.
Q2What is the sum of 1008 and 2000?

A. 1008
B. 1808
C. 9008
D. 3008

Step: 1
 1 0 0 8 + 2 0 0 0 3 0 0 8 [Add.]
Step: 2
The sum of 1008 and 2000 is 3008.
Q3
 2 8 9 + 7 7 8

A. 1068
B. 1067
C. 1078
D. 1077

Step: 1
 H T O 1 1 2 8 9 + 7 7 8 10 6 7
Q4
 6 8 + 8 7 9

A. 937
B. 947
C. 957
D. 967

Step: 1
 H T O 1 1 [Carry.] 0 6 8 + 8 7 9 9 4 7
Q5Find the sum of 9225 and 123.
A. 8348
B. 9350
C. 7348
D. 9348

Step: 1
 Th H T O 9 2 2 5 + 1 2 3 9 3 4 8 [Add.]
 Th H T O 5 5 3 3 + 1 2 1

A. 6654
B. 5658
C. 5654
D. 5655

Step: 1
 Th H T O 5 5 3 3 + 1 2 1 5 6 5 4 [Add.]
Q7
 7 9 7 + 6 7 8

A. 1,475
B. 1,745
C. 1,457
D. 1,445

Step: 1

Q8
 9 9 9 +3 3 3

A. 1,223
B. 1,332
C. 1,232

Step: 1

 3 1 1 + 3 3 3

A. 744
B. 644
C. 544
D. 754

Step: 1
 H T O 3 1 1 + 3 3 3 4
[3 ones + 3 ones = 4 ones.]
Step: 2
 H T O 3 1 1 + 3 3 3 4 4
[3 tens + 3 tens = 4 tens.]
Step: 3
 H T O 3 1 1 + 3 3 3 6 4 4
[3 hundreds + 3 hundreds = 6 hundreds.]
Step: 4
So, 311 + 333 = 644
Q10Find the sum of the numbers 2 564 and 2 146.
A. 4 510
B. 4 720
C. 4 610
D. 4 710

Step: 1
Write the numbers along with their places and add.
Step: 2
 Th H T O 1 2 5 6 4 + 2 1 4 6 0
[4 ones + 6 ones = 10 ones = 1 tens + 0 ones]
Step: 3
 Th H T O 1 1 2 5 6 4 + 2 1 4 6 1 0
[1 ten + 6 tens + 4 tens = 11 tens = 1 hundreds + 1 tens]
Step: 4
 Th H T O 1 1 2 5 6 4 + 2 1 4 6 7 1 0
[1 hundred + 5 hundreds + 1 hundreds = 7 hundreds]
Step: 5
 Th H T O 1 1 2 5 6 4 + 2 1 4 6 4 7 1 0
[2 thousands + 2 thousands = 4 thousands]
Step: 6
Therefore, the sum of the numbers is 4 710.
Correct Answer is :   4 710