Worksheet
Grade 1
Missing Numbers— Count to 120
Worksheet · 1.NBT.A.1
Free
Math · Curriculum resources
Missing Number Activity Worksheets and Activities
Missing Numbers is a foundational math skill that spans kindergarten through fifth grade. This hub page offers a curated collection of printable and digital resources, including worksheets, games, and activities, to help students master number sequence, counting, and place value across all elementary grades.
2 results
Worksheet
Grade 1
Read and Write Numbers
Worksheet · 1.NBT.A.1
$1.50
About these Missing Number Activity worksheets and activities
In the earliest grades, Missing Numbers activities focus on counting forward and backward within 20, identifying numbers before and after, and filling in gaps on a number line. As students progress, the skill expands to include counting to 120, reading and writing numbers to 1000, and understanding place value patterns. By upper elementary, Missing Numbers tasks involve larger numbers, skip-counting by multiples, and working with decimals and fractions on number lines. Related concepts such as number order, greater than/less than, and number patterns are naturally reinforced.
Resources on this page are designed to build fluency and number sense through varied formats: no-prep worksheets for independent practice, interactive digital games for centers, and scaffolded activities for small groups or intervention. Whether a student is just learning to count by ones or practicing skip-counting by tens, these materials provide differentiated support across a mixed-ability classroom. All resources are teacher-authored and aligned to grade-level standards, with many offering both printable and digital options for flexible use.
Using these in your classroom
Teachers can use this hub to easily find the right level for their class or differentiate for individual needs. For whole-group instruction, project a digital missing numbers game or use a printable activity as a warm-up. In small groups, scaffolded worksheets and hands-on games allow targeted practice for students who need extra support or enrichment. The resources also work well in math centers, for independent practice, homework, intervention, review, and assessment. Mix and match printable and digital formats to suit your instructional setting, and use the variety of difficulty levels to meet each student where they are.
Standards alignment
These resources are aligned to Common Core State Standards for counting and cardinality in kindergarten and first grade, and number and operations in base ten through fifth grade. Specific grade-level standards are noted on each resource.
Frequently asked questions
Are these Missing Numbers worksheets printable?
Yes, many of our Missing Numbers resources are available as printable PDFs. You can download and print them for classroom use or homework. Some resources are also digital, allowing students to complete them on a device. Note that while some resources are free, full access requires a Workybooks membership.
Are these Missing Numbers worksheets for kids of all elementary grades?
Yes, this hub page includes resources for kindergarten through fifth grade. You will find activities that range from simple number sequences within 20 for younger students to more complex patterns with larger numbers and decimals for upper elementary. Each resource is labeled with its target grade level.
Can I use these resources for intervention or review?
Absolutely. The scaffolded design of many resources makes them ideal for intervention with struggling students or review before assessments. You can select a resource that targets a specific skill, such as counting by tens or filling in missing numbers on a hundreds chart, and use it one-on-one or in a small group.
Do these resources include games and activities beyond worksheets?
Yes, in addition to worksheets, this collection includes interactive digital games, hands-on activities, and graphic organizers. These varied formats keep students engaged and support different learning styles, whether in a center, whole group, or at home.