Double Digit Add Regroup Worksheet
This double digit add regroup worksheet gives 1st grade students twelve problems adding a one-digit number to a two-digit number with regrouping. An answer key is included for fast, easy checking.
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About this resource
Description
Regrouping is the big new idea in first grade addition: when the ones add up to ten or more, those ten ones become one new ten. This Double Digit Add Regroup Worksheet gives children focused practice with exactly that step, adding a one-digit number to a two-digit number and carrying the new ten into the tens column.
The worksheet has twelve column problems, each in its own numbered box. Every problem pairs a two-digit number with a one-digit number, and every one of them needs regrouping, so students practice the skill on each item instead of only now and then. The one-digit addend sits on top in some boxes and on the bottom in others, which keeps children lining up the ones column carefully. Have students start in the ones column, write the ones digit of that sum below the line, carry the ten, and then add the tens.
What’s Included
- One page with 12 two-digit plus one-digit addition problems, all with regrouping
- Clear, numbered boxes with big print for young learners
- An answer key on the second page for quick checking
Why This Worksheet Helps Kids
- It builds a solid understanding of place value by showing that ten ones make one ten.
- Every problem regroups, so children practice the new step until it feels automatic.
- Mixing where the one-digit number appears teaches careful lining up of columns.
Ideas for Teachers and Parents
Use this 1st grade addition worksheet after modeling regrouping with base-ten blocks or bundles of ten straws. Children can build a few problems with blocks before solving them on paper, or use the page as a math center, a morning review, or homework. For a quick check, ask students to explain out loud how they knew a problem needed regrouping. Once they are confident, move on to adding two two-digit numbers. Keep the Double Digit Add Regroup Worksheet handy for review whenever students need a refresher.
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