Three-Digit Addition Worksheets

This page contains printable 3-digit addition exercises for grade 2, grade 3, and grade 4 kids, like addition drills, place value blocks, finding the correct addends, adding more than two addends, missing digits, treasure box, and more. You have options to select from horizontal or vertical; regrouping or no regrouping; with or without word problems. Free samples are also available.

3-Digit and 2-Digit

The addends are 3-digit and 2-digit. Problems assigned in four categories: regrouping, no regrouping, with or without word problems.

3-digit and 2-digit Addition

No Regrouping:

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No Regrouping with Word Problems:

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Regrouping:

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Regrouping with Word Problems:

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Adding 3-digit Numbers with Word Problems

Each pdf worksheet has twelve standard three-digit addition problems and two word problems.

3-digit Addition with Word Problems

No Regrouping:

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Regrouping:

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Column 3-digit Addition Drill: No Regrouping

Each problem in this printable worksheet has 3-digit no regrouping addends in columns. You may set a time limit before working on the drill.

Three-digit Column Addition Drill: No Regrouping

15 per page:

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25 per page:

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50 per page:

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Column 3-digit Addition Drill: Regrouping

Explore your skills in addition by practicing these regrouping addition drills.

Three-digit Column Addition Drill: Regrouping

15 per page:

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25 per page:

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50 per page:

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Horizontal 3-digit Addition Drill: No Regrouping

The pdf worksheets have 3-digit addends in rows. Regrouping is not required. You may select from 15, 25 and 50 per page.

Three-digit Horizontal Addition Drill: No Regrouping

15 per page:

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25 per page:

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50 per page:

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Horizontal 3-digit Addition Drill: Regrouping

Practicing these drills will provoke the adding skills of 3rd grade and 4th grade students. Regrouping required.

Three-digit Horizontal Addition Drill: Regrouping

15 per page:

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25 per page:s

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50 per page:

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Addition with Base Ten Blocks

Write the number represented by flats, rods and units. Find the sum using place value blocks.

3-digit Addition: Base Ten Blocks

Sheet 1 | Sheet 2 | Sheet 3

Circle the Numbers

Each printable worksheet for 2nd grade and 3rd grade children has 10 problems finding correct addends that make the required sum.

Three Digit Addition Activity

Sheet 1 | Sheet 2 | Sheet 3

Treasure Box

Each problem has a treasure box without a number. Find the missing addends.

3-digit Addition Activity: Finding the Missing Number

Easy:

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Moderate:

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Missing Digits

Each worksheet has 20 problems. Find the missing digits in each problem. Easy level has two digits missing. Moderate level has three digits missing.

Find the Missing Digits: Three Digit Addition

Easy:

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Moderate:

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Adding More Addends

3-digit addition pdf worksheets are based on adding more than two addends (three, four and five).

3-digit Addition: More Addends

Three Addends:

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Four Addends:

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Five Addends:

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