4 Digit Plus 4 Digit
- Add two four-digit numbers to find the total.
- Use carrying (regrouping) when a place value adds to 10 or more.
4th Grade Addition Worksheets
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.
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About these worksheets
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.
4 Digit Plus 4 Digit (horizontal)
- Add two 4-digit numbers written in a horizontal equation (e.g., 3,482 + 6,159).
- Regroup (carry) from ones to tens, tens to hundreds, and hundreds to thousands when adding 4-digit numbers.
- Use place value to add thousands, hundreds, tens, and ones accurately.
About these worksheets
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.
Addition Using an Open Numberline
- Practice adding two large numbers by breaking one number into place-value parts (thousands, hundreds, tens, ones)
- Use a number line to show each step of the addition as a separate jump
- Build up to the final sum by adding one place value at a time