3rd grade addition & subtraction worksheets
From first facts and number bonds to multi-digit regrouping. Every addition & subtraction skill we teach at 3rd grade, one to a page. Each prints as a PDF with its answer key, and no two prints are the same.
Addition & subtraction skills for 3rd grade
- Fact families Fluency · answer key The three numbers in the roof are a family. Write all four facts they make together.
- Mental math Fluency · answer key Turn hard numbers into friendly ones: to add 29, add 30 and then take 1 back.
- Subtracting across zeros Computation · answer key When a zero can't lend, keep moving left until you find a digit that can.
- Three-digit addition & subtraction Computation · answer key Check the sign first, then work one column at a time starting from the ones.
All 3rd grade math worksheets →
More 3rd grade math: Counting & place value · Multiplication & division · Fractions · Area & volume · Measurement · Data & graphing
Or the full addition & subtraction collection, every grade.