Grades 2–3
Two-Digit Addition and Subtraction
Twenty stacked problems with two-digit numbers, about half with regrouping (carrying and borrowing).
Math worksheet · Addition and subtraction practice
Subtraction Facts Within 20
Thirty subtraction facts from 20 and below. Every answer is 0 or more.
- Grade level
- Grades 1–2
- Time
- About 15 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
“Subtract. Check a few by adding back!”
Sample problems
- 9−6 =
- 6−2 =
- 5−5 =
- 5−3 =
Teacher tip
Suggest kids check a few answers by adding back. It builds the link between the two operations.
How to use it
- Let partners check each other with a calculator after they finish.
- Warm up with two minutes of facts out loud before kids start.
- Do the first problem together under a document camera, then let kids finish on their own.
Watch for
Subtracting the smaller digit from the bigger one in each column (54 − 27 = 33). Ask kids to say “Can I take 7 from 4?” before they write.
Talk about it
- Which strategy did you use: counting on, making ten or a doubles fact?
- Which problem was the hardest? What made it hard?
Take it further
Turn three problems into story problems and illustrate one of them.
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
3rd grade
Three-Digit Addition and Subtraction
Fifteen three-digit problems with regrouping across the ones, tens and hundreds.
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.
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