1st Grade Missing Numbers Worksheets (1-20) Set 33 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 33 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Math Worksheets
These free printable 1st grade math worksheets help children practice the core skills they need as they move from early counting into addition, subtraction, and basic facts. First grade is an important year for building number sense, solving simple problems, and becoming more confident with math practice.
Use these worksheets for kids who need extra practice with addition facts, subtraction facts, missing numbers, and counting review. The worksheets are simple to print and easy to use for classroom lessons, homework, homeschool practice, or morning math work.
What You'll Find
- Addition worksheets
- Subtraction worksheets
- Counting and number sense
- Basic facts practice
- Missing numbers
Browse ready-made worksheets below or create your own custom printable math worksheet in seconds.
1st Grade Math Practice Guide
1st Grade math practice should build fluency while still helping students understand why each step works. Printable worksheets are useful for reviewing facts, strengthening accuracy, and giving students enough repetition to feel confident with new skills.
Parents and teachers can use these free printable 1st grade math worksheets for daily warmups, homework, small group review, homeschool lessons, or extra practice before a quiz. Choose a worksheet type below to focus on one skill at a time.
- Review basic facts regularly
- Choose focused practice before mixed review
- Check work and correct errors early
- Use related worksheets to build skill progression
Choose a Worksheet Type
Popular 1st Grade Worksheets
Showing 568-588 of 1135 worksheets. Page 28 of 55.
1st Grade Missing Numbers Worksheets (1-20) Set 34 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 34 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 35 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 35 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 36 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 36 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 37 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 37 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 38 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 38 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 39 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 39 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 40 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 40 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 41 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 41 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 42 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 42 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 43 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 43 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 44 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 44 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 45 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 45 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 46 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 46 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 47 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 47 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 48 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 48 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 49 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 49 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers Worksheets (1-20) Set 50 - Free Printable PDF
Download 1st grade missing numbers worksheets (1-20) set 50 for Grade 1. Students fill in missing numbers to practice counting order, number sense, and early math fluency.
1st Grade Missing Numbers (1-20 Practice Set 1) - Free Printable PDF
Download a free printable 1st grade missing numbers worksheet for 1-20. Students fill in missing numbers to practice counting, number order, and early number sense.
1st Grade Missing Numbers (1-20 Practice Set 2) - Free Printable PDF
Download a free printable 1st grade missing numbers worksheet for 1-20. Students fill in missing numbers to practice counting, number order, and early number sense.
1st Grade Missing Numbers (1-20 Practice Set 3) - Free Printable PDF
Download a free printable 1st grade missing numbers worksheet for 1-20. Students fill in missing numbers to practice counting, number order, and early number sense.
Want a custom worksheet?
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Create Your Own WorksheetFrequently Asked Questions
What math skills should a 1st grader know?
A 1st grader should practice counting, addition, subtraction, number sense, missing numbers, and basic math facts.
Are these 1st grade worksheets printable?
Yes. These worksheets are free printable math worksheets that can be downloaded or printed for practice.
Can I use these worksheets for homework?
Yes. They work well for homework, classroom review, homeschool lessons, and extra math practice.
Do 1st graders need picture math?
Picture math is helpful for many 1st graders because it connects counting with addition and subtraction.