3rd grade
Three-Digit Addition and Subtraction
Fifteen three-digit problems with regrouping across the ones, tens and hundreds.
Math worksheet · Addition and subtraction practice
Two-Digit Addition and Subtraction
Twenty stacked problems with two-digit numbers, about half with regrouping (carrying and borrowing).
- Grade level
- Grades 2–3
- Time
- About 20 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Addition and subtraction facts, Regrouping, Mental math strategies, Checking with the inverse
What kids do
“Add or subtract. Start with the ones. Regroup when you need to!”
Teacher tip
Have kids put a small check next to the problems that need regrouping before they solve. Spotting it first prevents most errors.
How to use it
- Ask kids to circle the problems they are sure of first, then go back to the tricky ones.
- Keep a number line or hundred chart taped to the desk for kids who need it.
- Do the first problem together under a document camera, then let kids finish on their own.
Watch for
Columns that drift. Turn lined paper sideways or use graph paper to keep digits lined up.
Talk about it
- How can an addition fact help you solve a subtraction fact?
- Which problem was the hardest? What made it hard?
Take it further
Play a dice game: roll two dice, add or subtract, and race to a hundred.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More addition and subtraction practice worksheets
Grades 1–2
Doubles and Doubles Plus One
Ten doubles facts (6 + 6) and ten near-doubles (6 + 7), with the doubles pictured so kids see the trick.
Grades 1–2
Missing Addends
Twenty-four facts with a blank in the middle: 7 + ___ = 12. Count on or subtract to find the missing part.
Grades 1–2
Number Line Hops
Eight problems within 20, each with a number line. Kids draw the hops and land on the answer.
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