4th Grade Math · Multi-Digit Addition and Subtraction
Adding 4-digit numbers Worksheets
Free and printable, with a full answer key. Every worksheet is generated fresh, so you can hand a different version to every student.
Sums such as 4,768 + 2,957, each with at least one regrouping.
Or start with a ready-made version:
How it works: a quick refresher
For the adult at the table. These are the rules the worksheet practices, followed by one problem worked from start to finish.
| Strategy | How it works |
|---|---|
| Line up by place value | Write the numbers right-aligned so ones, tens, hundreds and thousands sit in columns. |
| Work right to left | Add or subtract the ones first, then tens, then hundreds, carrying or regrouping as you go. |
| Regrouping across zeros | In 5,003 − 1,867 you cannot take from a zero, so go to the 5: 5 thousands become 4 thousands, 9 hundreds, 9 tens and 13 ones. |
| Estimate first | Round both numbers to check the answer is the right size: 4,768 + 2,957 is about 5,000 + 3,000 = 8,000. |
Worked example
Find 5,003 − 1,867.
- Ones: 3 is less than 7, and the tens and hundreds are 0, so regroup from the thousands.
- 5,003 becomes 4 thousands, 9 hundreds, 9 tens and 13 ones.
- 13 − 7 = 6, 9 − 6 = 3, 9 − 8 = 1, 4 − 1 = 3.
- 5,003 − 1,867 = 3,136. Check: 3,136 + 1,867 = 5,003.
Ready-made versions
Three fixed versions you can link to or share. Each is a PDF with its own answer key.
- Adding 4-digit numbers Worksheets, version 1Worksheet PDFAnswer key PDF
- Adding 4-digit numbers Worksheets, version 2Worksheet PDFAnswer key PDF
- Adding 4-digit numbers Worksheets, version 3Worksheet PDFAnswer key PDF
Grade level and standard
Written for 4th grade math (place value) and aligned to CCSS 4.NBT.B.4. It also works as review in later grades.
Common questions
- Is there an answer key?
- Yes. Every worksheet has a matching answer key with each answer worked on the same grid or layout as the question. The worksheet ID printed at the bottom of each page pairs a sheet with its key.
- Why are there commas in the numbers?
- They match how numbers are written in 4th grade textbooks and make large numbers easier to read. Children can ignore them when working the columns.
- Are any answers negative?
- No. The larger number is always on top in subtraction.
- How many different versions are there?
- About a million per skill. Each time you press the button the problems are generated fresh, so you can print a different version for every student, a retake, or another night of practice.
- Are the worksheets free?
- Yes. They are free to print and copy for your home or classroom, with no sign-up.