3rd Grade Addition Worksheets
3rd Grade Addition Worksheets
Is your third grader practicing how to add with thousands, whole hundreds or add with regrouping?
Below you’ll find more than 90 addition worksheets for 3rd graders. Our double-digit addition worksheets include adding 2-digit and 1 digit numbers, missing addends, double-digit addition with various values, multiples, adding to complete 100, and whole tens. Some worksheets require regrouping and some do not. We also provide various 3-digit and 4-digit addition worksheets such as adding multiples of 100, whole thousands and hundreds, and more!
All of these worksheets can be used for any age, not just third graders. Be sure to check out all of our addition and subtraction worksheets, too!
Double-Digit Addition (Printable PDFs)
Here you’ll find double-digit addition worksheets with a horizontal or vertical format. These include adding 2-digit and 1-digit numbers without regrouping, add numbers 10-50 and 10-99 with and without regrouping, add 3 multiples of 1o, and finding the missing addend to complete 100.
No Regrouping and Horizontally Formatted Worksheet #1
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No Regrouping and Horizontally Formatted Worksheet #2
No Regrouping and Horizontally Formatted Worksheet #3
No Regrouping and Vertically Formatted Worksheet #1
No Regrouping and Vertically Formatted Worksheet #2
No Regrouping and Vertically Formatted Worksheet #3
Missing Addends and No Regrouping Worksheet #1
Missing Addends and No Regrouping Worksheet #2
Missing Addends and No Regrouping Worksheet #3
Missing Addends and No Regrouping Worksheet #1
Missing Addends and No Regrouping Worksheet #2
Missing Addends and No Regrouping Worksheet #3
No Regrouping Worksheet #1
No Regrouping Worksheet #2
No Regrouping Worksheet #3
No Regrouping Worksheet #4
No Regrouping Worksheet #5
No Regrouping Worksheet #6
Regrouping Worksheet #1
Regrouping Worksheet #2
Regrouping Worksheet #3
Regrouping Worksheet #4
Regrouping Worksheet #5
Regrouping Worksheet #6
Worksheet #1
Worksheet #2
Missing Addends
Missing Addends and Vertically Formatted Worksheet #1
Missing Addends and Vertically Formatted Worksheet #2
Missing Addends and Vertically Formatted Worksheet #3
Missing Addends and Horizontally Formatted Worksheet #1
Missing Addends and Horizontally Formatted Worksheet #2
Missing Addends and Horizontally Formatted Worksheet #3
Whole Tens and Double-Digit Addition (Printable PDFs)
In this section we provide adding whole tens to double-digit numbers worksheets. These will include horizontal and vertical worksheets as well as 6 missing addend worksheets.
Horizontal Format Worksheet #1
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Horizontal Format Worksheet #2
Horizontal Format Worksheet #3
Vertical Format Worksheet #1
Vertical Format Worksheet #2
Vertical Format Worksheet #3
Missing Addend and Horizontally Formatted Worksheet #1
Missing Addend and Horizontally Formatted Worksheet #2
Missing Addend and Horizontally Formatted Worksheet #3
Missing Addend and Vertically Formatted Worksheet #1
Missing Addend and Vertically Formatted Worksheet #2
Missing Addend and Vertically Formatted Worksheet #3
Triple-Digit Addition (Printable PDFs)
Here you’ll find triple-digit addition worksheets with a horizontal or vertical format. These include adding 3-digit and 1-digit numbers that involve some regrouping, adding 3-digit numbers without regrouping, and adding 3-digits with all numbers with and without regrouping.
Vertical Format Worksheet #1
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Vertical Format Worksheet #2
Vertical Format Worksheet #3
Horizontal Format Worksheet #1
Horizontal Format Worksheet #2
Horizontal Format Worksheet #3
No Regrouping Worksheet #1
No Regrouping Worksheet #2
No Regrouping Worksheet #3
No Regrouping and Vertically Formatted Worksheet #1
No Regrouping and Vertically Formatted Worksheet #2
No Regrouping and Vertically Formatted Worksheet #3
No Regrouping and Horizontally Formatted Worksheet #1
No Regrouping and Horizontally Formatted Worksheet #2
No Regrouping and Horizontally Formatted Worksheet #3
Regrouping and Vertically Formatted Worksheet #1
Regrouping and Vertically Formatted Worksheet #2
Regrouping and Vertically Formatted Worksheet #3
Regrouping and Horizontally Formatted Worksheet #1
Regrouping and Horizontally Formatted Worksheet #2
Regrouping and Horizontally Formatted Worksheet #3
Add with Multiples of 100 and 10 (Printable PDFs)
This worksheet section includes worksheets on adding with whole hundreds and whole tens. We provide 3 multiples of 1oo worksheets, 3 multiples of 1oo worksheets with missing addends, 1 add multiples of 100 to find a sum of 1,000, and 2 add multiples of 10 to 3-digit numbers worksheets.
Worksheet #1
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Worksheet #2
Worksheet #3
Missing Addends Worksheet #1
Missing Addends Worksheet #2
Missing Addends Worksheet #3
Missing Addends Worksheet
Worksheet #1
Worksheet #2
Four-Digit Addition (Printable PDFs)
This section has a few different worksheets including 4-digit addition. Worksheets include adding whole thousands and hundreds, adding to complete whole thousands, add 4-digit and 1-digit numbers, add 4-digit and 2-digit numbers, add 4-digit and 3-digit numbers, and adding 4-digit numbers with any number up to 9,999.
Worksheet #1
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Worksheet #2
Worksheet #3
Worksheet #1
Worksheet #2
Worksheet #3
Thousands and Single-Digit Addition Worksheet #1
Thousands and Single-Digit Addition Worksheet #2
Thousands and Single-Digit Addition Worksheet #3
Thousands and Double-Digit Addition Worksheet #1
Thousands and Double-Digit Addition Worksheet #2
Thousands and Double-Digit Addition Worksheet #3
Thousands and Triple-Digit Addition Worksheet #1
Thousands and Triple-Digit Addition Worksheet #2
Thousands and Triple-Digit Addition Worksheet #3
Add Numbers up to 9,999 Worksheet #1
Add Numbers up to 9,999 Worksheet #2
Add Numbers up to 9,999 Worksheet #3