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Adding Numbers: Two 3-Digit Numbers

In this worksheet, students add together two numbers - both of which have three digits. They use a formal written/column method.

'Adding Numbers: Two 3-Digit Numbers' worksheet

Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Add/Subtract up to Four-Digit Numbers

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

This worksheet helps children to learn about the addition of three digits number.

For example -

Question - Add the numbers together.

+ 1 5 8
9 6 1
 

Answer -

+ 1 5 8
9 6 1
  1 0 0 0  
    1 1 0  
        9  
  1 1 1 9    

Add the numbers together.

+ 5 5 1
3 2 8
 

Add the numbers together.

+ 6 6 9
7 0 1
 

Add the numbers together.

+ 9 1 9
1 4 8
 

Add the numbers together.

+ 9 0 3
5 8 7
 

Add the numbers together.

+ 1 6 5
8 4 5
 

Add the numbers together.

+ 6 5 5
4 6 6
 

Add the numbers together.

+ 4 5 0
4 6 9
 

Add the numbers together.

+ 8 4 7
6 6 0
 

Add the numbers together.

+ 6 0 3
4 7 0
 

Add the numbers together.

+ 1 8 7
3 2 9
 
  • Question 1

Add the numbers together.

+ 5 5 1
3 2 8
 
CORRECT ANSWER
879
EDDIE SAYS
+ 551
328
  800 
   70 
    9 
  879 
  • Question 2

Add the numbers together.

+ 6 6 9
7 0 1
 
CORRECT ANSWER
1370
EDDIE SAYS
+ 669
701
  1300 
    60 
    10 
  1370 
  • Question 3

Add the numbers together.

+ 9 1 9
1 4 8
 
CORRECT ANSWER
1067
  • Question 4

Add the numbers together.

+ 9 0 3
5 8 7
 
CORRECT ANSWER
1490
EDDIE SAYS
+ 903
587
  1400 
    80 
    10 
  1490 
  • Question 5

Add the numbers together.

+ 1 6 5
8 4 5
 
CORRECT ANSWER
1010
EDDIE SAYS
+ 165
845
 
 
 
 
  • Question 6

Add the numbers together.

+ 6 5 5
4 6 6
 
CORRECT ANSWER
1121
EDDIE SAYS
+ 655
466
  1000 
   110 
    11 
  1121 
  • Question 7

Add the numbers together.

+ 4 5 0
4 6 9
 
CORRECT ANSWER
919
EDDIE SAYS
+ 450
469
  800 
  110 
    9 
  919 
  • Question 8

Add the numbers together.

+ 8 4 7
6 6 0
 
CORRECT ANSWER
1507
EDDIE SAYS
+ 847
660
  1400 
   100 
     7 
  1507 
  • Question 9

Add the numbers together.

+ 6 0 3
4 7 0
 
CORRECT ANSWER
1073
EDDIE SAYS
+ 603
470
  1000 
    70 
     3 
  1073 
  • Question 10

Add the numbers together.

+ 1 8 7
3 2 9
 
CORRECT ANSWER
516
EDDIE SAYS
+ 187
329
  400 
  100 
   16 
  516 
---- OR ----

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