Triple Digit Number Addition Regroup Worksheet
This triple digit number addition regroup worksheet gives 2nd Grade students twelve stacked problems that all regroup, building place-value fluency. An answer key is included so every sum can be checked in seconds.
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About this resource
Description
Adding two three-digit numbers with regrouping is one of the biggest steps a second grader takes in math, and this triple digit number addition regroup worksheet gives them the focused column practice that step requires. Regrouping asks a child to notice when a column of digits adds up to ten or more, carry the extra ten into the next place, and keep every digit lined up in its own place-value column. Once that habit is steady, adding within 1,000 stops feeling like a brand new skill and starts feeling like counting.
This printable sheet holds twelve stacked addition problems, each one set inside its own rounded card with a numbered badge so nothing runs together. Every problem regroups: four carry from the ones column, four carry from the tens column, and four carry twice, so a child cannot learn one pattern and coast through the page. Use it as morning work, as a guided lesson after you model one problem on the board, as homework, or as a quick check before a unit test. The answer key is the last page, so a teacher, a parent, or a study partner can check all twelve sums in under a minute.
What’s Included
- 1 print-ready PDF worksheet
- Answer key
- 12 stacked three-digit addition problems, every one of them regrouping
- A name and date line for classroom use
Three reasons this triple digit number addition regroup worksheet helps kids learn the skill. First, every digit is drawn into a fixed place-value column, so the ones sit under the ones and the tens under the tens, and a child can see exactly where a carried ten belongs. Second, the carry types are mixed on purpose, which makes the student check each column instead of repeating one memorized move down the page. Third, no addend contains a zero, which removes the shortcut that lets a child copy a digit straight down without adding it. Twelve problems is enough work to build real fluency and short enough to finish in one sitting.
Teachers and parents can stretch this three digit addition with regrouping practice in a few easy ways. Build the first problem with base-ten blocks or bundles of craft sticks and trade ten ones for a single ten out loud, so the word regroup has something physical behind it. Ask your child to write a short story problem that ends in one of the sums on the page. Race a partner to see who can check the answer key faster. Or flip the page over and invent three new problems that regroup twice, then trade papers and solve.
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