3rd Grade Math Worksheets: Addition

Free math worksheets from K5 Learning

For practicing some math skills, there is just nothing more effective than a pencil and paper. Our grade 3 additioin worksheets compliment our K5 Math and K5 Math Facts online math programs.

Using our math worksheets:

Each time you refresh the screen, the worksheet will change - you can create an infinite number of different worksheets of any type. Answer keys are available by clicking at the bottom of each worksheet.

Addition

 

 

Example

Complete one hundred (missing addend)
  ___ + 6 = 100
Add two 2-digit numbers - one addend is a whole ten
  20 + 39 = ___
Add two 2-digit numbers - one addend is a whole ten - missing addend   20 + ___ = 59
        
Add a 1-digit number to a 2-digit number
  94 + 7 = ___
Add a 1-digit number to a 2-digit number - missing addend   91 + ___ = 96
         
Adding one 2-digit number and two one-digit numbers
  3 + 41 + 9 = ___
Adding a 3-digit number and a 1-digit number
  865 + 5 = ___

 
Add two whole tens and two one-digit numbers
  50 + 8 + 7 + 50 = ___
Adding whole tens (3 addends)
  60 + 50 + 40 = ___
Adding whole tens (4 addends)
  40+10+10+60= ___
Adding whole hundreds (2 addends)   300 + 100 = ___
Adding whole hundreds (3 addends)   200+100+700 = ___
Adding whole hundreds - missing addend
  ___ + 500 = 1,300
Completing a whole thousand (whole hundreds are missing)   700 + ___ = 1,000

   
Adding two numbers with thousands and whole hundreds   4,500 + 1,400 = ___
Adding whole thousands to another number   6,349 + 4,000 = ___

Column-form addition

 
Adding two 2-digit numbers

 

94

+ 20


Adding two 2-digit numbers, no carrying

 

22

+ 23


Adding two 3-digit numbers

 

123

+ 234


Adding three 3-digit numbers

 

342

+ 123

+ 456


Adding four 3-digit numbers

 

456

+ 123

+ 567

+ 890


Adding two 4-digit numbers

 

5,432

+ 1,543


Adding three 4-digit numbers

 

9,002

+ 1,004

+ 2,567


Adding four 4-digit numbers

 

1,111

+ 2,222

+ 3,333

+ 4,444


 

 

Addition Word Problems  

 

Acknowledgments: Our worksheets are provided courtesy of Home School Math.

Recommended Workbooks

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