Designed by Zarah, Demi and Lee Anne
Edited by Chris
This collection of free 3 digit addition (with regrouping) worksheets includes a range of fun activities and challenges to keep students engaged in their learning. This task is generally introduced in Grade 2, reinforced in Grade 3, and revisited in Grade 4.
All worksheets are designed to be printed onto A4 paper. Make sure you select the “shrink to fit” option when printing to avoid any cut-offs on your print.
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Common Core© Learning Outcomes
These worksheets address the following Common Core© learning outcomes:
Grade 2 Math
2.NBT.B.7: “Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.”
Grade 3 Math
3.NBT.A.2: “Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.”
Grade 4 Math
4.NBT.B.4: “Fluently add and subtract multi-digit whole numbers using the standard algorithm.”
3 Digit Addition with Regrouping Worksheets
Version 1
Designed by Zarah
Difficulty: 🔥🔥
In this game, students complete the 3-digit regrouping sum then draw a line to the star with the correct number.
Version 2
Designed by Zarah
Difficulty: 🔥🔥
This is a simple drill and practice worksheet with 20 questions. It’s addition of 2-digits with 3-digits, but does involve carrying and regrouping. A good ‘easy’ version of 3-digit addition with regrouping tasks.
Version 3
Designed by Zarah
Difficulty: 🔥🔥
This version helps scaffold learning by including some numbers in the solution already, helping students to check their own work.
Version 4
Designed by Zarah
Difficulty: 🔥🔥🔥
In this game, students have to reverse engineer the sums, starting with the answer and finding the two numbers that make up the question!
Version 5
Designed by Zarah
Difficulty: 🔥🔥🔥
For this task, students don’t write the number – they circle it!
Version 6
Designed by Zarah
Difficulty: 🔥🔥🔥
One of the most popular tasks for students, in this challenge students need to complete the sums to crack a code!
Version 7
Designed by Zarah
Difficulty: 🔥🔥🔥
For this task, students need to complete the 3-digit addition with regrouping tasks in order to crack the code. Hint: it’s a country name!
Version 8
Designed by Zarah
Difficulty: 🔥🔥
For this scaffolded task, we don’t have numbers – we have dominoes! Great for visual students who can count each dot to help them learn.
Version 9
Designed by Zarah
Difficulty: 🔥🔥
For this scaffolded task, we don’t have numbers – we have pictures! Great for visual students who can count each dot to help them learn.
Version 10
Designed by Zarah
Difficulty: 🔥🔥🔥
This is a simple drill and practice worksheet with 20 questions that are all 3-digit by 3-digit addition with regrouping.
Version 11
Designed by Demi
Difficulty: 🔥🔥🔥
For this task, the students play teacher – they need to complete the sums to find out whether the answers given are correct or false.
Version 12
Designed by Demi
Difficulty: 🔥🔥🔥
For this task, students complete the sums to crack the code. One of the most popular worksheet styles we have on the site!
Version 13
Designed by Demi
Difficulty: 🔥🔥🔥
For this task, students need to do a row as fast as they can in order to yell out “bingo!” A great exit ticket activity at the end of the day.
Version 14
Designed by Demi
Difficulty: 🔥🔥
In this worksheet, students move through mazes until they enter chambers where they need to complete the sum before moving through the next maze section.
Version 15
Designed by Demi
Difficulty: 🔥🔥🔥🔥
This worksheet is a simple drill-and practice for 30 addition puzzles. Great for an end-of-session test!
Version 16
Designed by Demi
Difficulty: 🔥🔥🔥🔥
This worksheet gets students to go above and beyond by reverse engineering the sums in order to ensure the answer is correct. It requires some deeper thinking from advanced students.
Version 17
Designed by Demi
Difficulty: 🔥🔥🔥
For each challenge on this worksheet, only one answer is complete – but which one?
Version 18
Designed by Demi
Difficulty: 🔥🔥🔥
This fun task gives students a break after each set of three sums. At the end of each row, they can color the image!
Version 19
Designed by Demi
Difficulty: 🔥🔥🔥
A creative color-by-numbers task, students do 3-digit addition with regrouping challenges to find the number, then match the number to the color to know what color they need to color-in that part of the image.
Version 20
Designed by Demi
Difficulty: 🔥🔥🔥
Another twist on bingo, but this task has students work on two bingo cards simultaneously!
Version 21
Designed by Lee Anne
Difficulty: 🔥🔥
With just five simple sums on this worksheet, students need to complete the challenge then tick the box with the correct answer. This one helps students identify if their answer was wrong.
Version 22
Designed by Lee Anne
Difficulty: 🔥🔥🔥
Students complete the task then color-in their 2D shape!
Version 23
Designed by Lee Anne
Difficulty: 🔥🔥🔥
Students complete the sums to crack the code with the hint: “How do you make seven an even number?”
Version 24
Designed by Lee Anne
Difficulty: 🔥🔥🔥
Ten simple sums to help students practice three-digit addition with regrouping!
Version 25
Designed by Lee Anne
Difficulty: 🔥🔥🔥🔥
This fun challenge asks students to first crack the code to figure out what numbers they need to be adding in the first place!
Version 26
Designed by Lee Anne
Difficulty: 🔥🔥🔥
Students complete the sums to crack the code with the hint: “What do sharks say when something goes their way?”