Free addition worksheets with answer key. No login or account needed. Below you can find traditional horizontal and vertical addition problems, word problems, visual problems and much more. A grading column and quick grade scale maker grading a breeze and modified pages help with lower level learners or when just introducing a topic. Great for teachers or for homeschool.
Practice standard addition problems ranging from simple sums within 5 all the way up to four-digit plus four-digit addition. Worksheets are available in both vertical and horizontal formats and cover key skills like regrouping (carrying), adding multiples of ten, finding missing addends, and solving mixed addition and subtraction problems. These resources align with Common Core standards from kindergarten through fourth grade, giving students structured practice at every level.
When students are ready to add more than two numbers at once, these worksheets provide the practice they need. Activities range from adding three single-digit numbers with sums under 20 to adding three and four two-digit numbers with regrouping. Word problem versions are also included, where students pull key numbers from a story and add multiple three-digit addends. These worksheets align with first through third grade Common Core standards.
Beyond memorizing facts, students need strategies to add efficiently. These worksheets cover key techniques including making a ten, using open and closed number lines, finding equivalent addition problems, identifying missing digits, estimating sums with rounding, and breaking numbers apart by place value. These strategy-based activities help students build flexible thinking and mental math skills that support fluency with larger numbers.
Timed drills build speed and accuracy with basic addition facts. Each worksheet contains 50 to 100 problems focused on a specific fact family — from 0s through 10s — plus mixed fact sets that combine all families. Additional drill sheets cover adding and subtracting within 20, finding ten more and ten less, adding 9s using mental math shortcuts, and adding to reach multiples of ten. These are ideal for daily warm-ups, fact fluency practice, or timed assessments.
