Free · Grade 2 to Grade 4 · Answer keys
Addition and subtraction worksheets
Vertical addition and subtraction worksheets, set out in columns so every digit lines up with its place. Choose 2-, 3- or 4-digit numbers, with or without regrouping, on plain or graph-paper layouts; 15 to 20 problems per page and an answer key on the last page.
Make a worksheet in seconds →Grade 2
- 2-digit addition without regrouping
20 vertical 2-digit addition problems without regrouping. Free printable PDF with an answer key.
- 2-digit addition with regrouping
20 vertical 2-digit addition problems with regrouping. Free printable PDF with an answer key.
- 2-digit subtraction without regrouping
20 vertical 2-digit subtraction problems without regrouping. Free printable PDF with an answer key.
- 2-digit subtraction with regrouping
20 vertical 2-digit subtraction problems with regrouping. Free printable PDF with an answer key.
- 2-digit addition and subtraction with regrouping
20 vertical 2-digit addition and subtraction problems with regrouping. Free printable PDF with an answer key.
- 2-digit addition with regrouping
20 vertical 2-digit addition problems with regrouping, one digit per square on graph paper. Free printable PDF with an answer key.
- 2-digit subtraction with regrouping
20 vertical 2-digit subtraction problems with regrouping, one digit per square on graph paper. Free printable PDF with an answer key.
Grade 3
- 3-digit addition with regrouping
20 vertical 3-digit addition problems with regrouping. Free printable PDF with an answer key.
- 3-digit subtraction with regrouping
20 vertical 3-digit subtraction problems with regrouping. Free printable PDF with an answer key.
- 3-digit subtraction across zeros
20 vertical 3-digit subtraction problems across zeros. Free printable PDF with an answer key.
- 3-digit addition and subtraction with regrouping
20 vertical 3-digit addition and subtraction problems with regrouping. Free printable PDF with an answer key.
- 3-digit addition with regrouping
20 vertical 3-digit addition problems with regrouping, one digit per square on graph paper. Free printable PDF with an answer key.
- 3-digit subtraction with regrouping
20 vertical 3-digit subtraction problems with regrouping, one digit per square on graph paper. Free printable PDF with an answer key.
Grade 4
- 4-digit addition with regrouping
15 vertical 4-digit addition problems with regrouping. Free printable PDF with an answer key.
- 4-digit subtraction with regrouping
15 vertical 4-digit subtraction problems with regrouping. Free printable PDF with an answer key.
- 4-digit subtraction across zeros
15 vertical 4-digit subtraction problems across zeros. Free printable PDF with an answer key.
How to teach it
- Line the numbers up by place: ones under ones, tens under tens.
- Start with the ones column, on the right.
- Adding: if a column makes 10 or more, write the ones and carry the ten to the next column.
- Subtracting: if the top digit is smaller, regroup one from the next column to make ten more.
- Check a subtraction by adding the answer to the number taken away.
Questions teachers ask
- What does regrouping mean?
- Regrouping is trading ten of one place for one of the next. In addition, 10 ones become 1 ten (carrying). In subtraction, 1 ten becomes 10 ones (borrowing).
- What grade learns addition and subtraction with regrouping?
- In the Common Core, adding and subtracting within 100 with regrouping is Grade 2 (2.NBT.B.5), within 1000 is Grades 2 and 3 (2.NBT.B.7, 3.NBT.A.2), and the standard method with multi-digit numbers is Grade 4 (4.NBT.B.4).
- Why use graph paper for column addition?
- One digit in each square keeps the places lined up, which prevents most column mistakes for students who are still learning the layout.
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