Four-Digit Addition With Regrouping Worksheets for 4th Grade

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Grade 4MathAddition & SubtractionCCSS 4.NBT.B.4

Skill: Adding two four-digit numbers with the standard algorithm

Preview of the Four-Digit Addition With Regrouping printable worksheet
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Teaching tips and what to try next

For fourth graders who regroup confidently with three-digit numbers, as in Three-Digit Addition With Regrouping. Writing each addend in a place-value chart with labeled columns removes most lining-up errors. Mix in subtraction and five-digit numbers with Multi-Digit Addition and Subtraction, and see the standard at 4.NBT.B.4.

10 versions, each with its own answer key

Same skill and layout, a fresh set of problems in every version, so children can keep practicing without repeating a page. Problems are not repeated between versions unless a skill has only a small number of possible problems (for example, the addition facts within 10).

Download all 10 versions (one PDF)All 10 answer keys (PDF)

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About this worksheet

Fourth graders are expected to add multi-digit numbers fluently with the standard algorithm. Four-digit numbers are a good place to build that fluency, because they need careful lining up and regrouping in more than one column. This fourth-grade worksheet gives sixteen vertical addition problems.

Both numbers in each problem are between 1,000 and 8,999, and every sum is 9,999 or less, so the answers stay four-digit numbers. Every problem needs regrouping in at least two columns, and some need it in three. That makes each problem real practice instead of simple column adding. Each of the ten versions has new problems and its own answer key.

How to use it: remind your child to start with the ones column and move left. When a column adds to 10 or more, write the ones digit below the line and the ten as a small 1 at the top of the next column. A common mistake is forgetting to add that small 1, so have your child cross it out once it has been added. Before solving, ask for a quick estimate by rounding each number to the nearest thousand; if the answer is far from the estimate, something went wrong. Grid paper or a page turned sideways helps children who struggle to keep their columns straight.

The answer key shows every sum. For mixed addition and subtraction with bigger numbers, try our Multi-Digit Addition and Subtraction worksheet. To review smaller numbers first, try our Three-Digit Addition With Regrouping worksheet.