Addition Worksheets
Free printable addition worksheets with step-by-step answer keys. Every worksheet is uniquely generated so students never see the same problems twice. Topics covered range from single-digit addition, counting on at the easy level through to three-number addition, estimation at the advanced level.
CCSS.1.OACCSS.2.NBT
Difficulty Levels
Beginner
- Concepts
- Single-digit addition, counting on
- Number Range
- 1–5
- Steps
- 1 step
- Example
- 2 + 3
Easy
- Concepts
- Two-digit addition, no carrying
- Number Range
- 2–20
- Steps
- 1–2 steps
- Example
- 8 + 15
Medium
- Concepts
- Two-digit addition with carrying
- Number Range
- 11–99
- Steps
- 2–3 steps
- Example
- 47 + 38
Hard
- Concepts
- Three-number addition, estimation
- Number Range
- 100–999
- Steps
- 3–4 steps
- Example
- 234 + 156 + 189
Grade Availability
Addition worksheets are available for Grades 1–2. Problems are automatically adjusted to match grade-level expectations in number range, complexity, and notation.
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