Addition
Choose number ranges or digit lengths, with options for regrouping.
Free worksheet tools for teachers
Custom worksheets, ready when you are.
Choose a skill, customize the practice, and create printable worksheets with answer keys. Combine different pages into one classroom-ready packet—all from a single workspace.
Open the free Harbor Workshop. No account needed—support is optional.
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What's on board
Worksheet tools for everyday teaching
Start with the basics or dial in exactly what your students need. Every generator lets you customize the practice before printing.
Subtraction
Practice basic facts and multi-digit subtraction with borrowing options.
Multiplication
Generate multiplication facts or larger multi-digit problems.
Division
Create division practice from easy facts to long division.
Telling Time
Read analog clocks or draw hands, from the hour to the nearest minute.
Counting Coins
Use realistic U.S. coins with different faces and custom value ranges.
Ready to put them to work?
Open the free WorkshopPacket Builder
One worksheet or a complete practice packet.
Add worksheets from different generators, arrange the pages in the order you want, and create a single PDF. Answer keys are automatically grouped at the end.
Mix different worksheet types
Arrange pages before printing
Keep answer keys together
Addition Practice
27 + 15
34 + 28
46 + 19
53 + 26
Answer keys at the back
Ready to make your next worksheet?
Your free worksheet workspace is open whenever you need it.