Addition Worksheets

From counting-on within 10 to three-digit sums with regrouping. Pick a level, print, and get a fresh set of problems every time — with an answer key.

Choose a worksheet

Each button opens the generator with the right grade and problem type already chosen. Adjust the number of problems or layout, then click Export as PDF.

KindergartenWithin 10Make this worksheet → 1st gradeWithin 20Make this worksheet → 2nd grade2-digit with regroupingMake this worksheet → 3rd grade3-digit additionMake this worksheet → 2nd gradeAddition word problemsMake this worksheet → 1st gradeMissing addendMake this worksheet →

Sample problems

A few problems like the ones on these worksheets, with answers. Every worksheet you generate has new numbers.

Kindergarten · Within 10

10 + 0 = ___ 10
8 + 0 = ___ 8
3 + 6 = ___ 9
0 + 2 = ___ 2

1st grade · Within 20

19 + 1 = ___ 20
17 + 0 = ___ 17
7 + 8 = ___ 15
13 + 4 = ___ 17

2nd grade · 2-digit with regrouping

28 + 47 = ___ 75
76 + 14 = ___ 90
48 + 14 = ___ 62
29 + 42 = ___ 71

How addition develops from K to 3rd grade

Kindergartners add within 10 by counting objects and fingers. In 1st grade children add within 20 and start using strategies such as making ten (8 + 5 = 8 + 2 + 3) and doubles plus one (6 + 7 = 6 + 6 + 1). 2nd grade introduces two-digit addition with regrouping, often called carrying, and 3rd grade extends it to numbers up to 1,000.

Teaching tips

Fluency before speed. Children should be able to explain a strategy before you time them. Short daily sets of 10–20 problems beat one long sheet a week.
Line up place values. For multi-digit addition, ask children to write problems vertically on grid paper so ones sit under ones and tens under tens.
Say the regrouping out loud. "7 + 8 is 15: that's 1 ten and 5 ones, so the ten moves to the tens column."
Mix in word problems once the facts are steady, so addition is connected to real situations.

Common mistakes to watch for

Writing the whole sum of a column (15) instead of carrying the ten.
Forgetting to add the carried 1 in the next column.
Starting from the left (tens) instead of the right (ones).

Frequently asked questions

What is addition with regrouping?

When the digits in one column add up to 10 or more, the ten is "regrouped" (carried) to the next column. In 47 + 38, the ones make 15, so you write 5 and carry 1 ten, giving 85. Our 2nd grade addition worksheets always include regrouping.

How many problems should a worksheet have?

For daily practice, 10–20 problems is plenty. Use the "Number of Questions" setting in the generator; it fits as many as you choose onto printable pages.

Are answer keys included?

Yes. Tick "Include Answer Key" before exporting the PDF and a separate answer page is added at the end.