This 1st grade math unit is jam-packed with first grade math worksheets, games, and activities for grade 1 students! You can use this as a supplement to your curriculum or use it solely as your 1st grade skill practice for finding missing numbers in addition and subtraction.
$7.00
Build your students’ confidence with addition and subtraction equations using this 1st Grade Missing Numbers Math Unit! Packed with missing numbers worksheets, engaging math games, and hands-on activities, this resource helps students understand how to find unknown addends and missing parts in equations.
Through visual supports, number models, and interactive centers, students develop a solid understanding of the relationship between addition and subtraction. Whether you use this unit for guided math groups, independent work, or review, it provides multiple ways for learners to solve and explain equations with missing values.
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Everything you need to teach missing numbers in addition and subtraction is included in this printable unit. It’s designed to keep students engaged while reinforcing foundational math reasoning skills:
10 Missing Numbers Worksheets: Students practice identifying unknown addends or missing answers in both addition and subtraction equations using pictures, number models, and fact family relationships.
Cut and Glue Fish Activity: Students cut out fish with equations and glue them in the correct spot to complete each missing number problem.
Matching Salad Game: Students sort salad ingredients into the correct bowls by solving equations and finding the missing number that completes each one.
Emoji Math Sort: Students decide whether each equation is solved correctly and place a smile or frown emoji to show their reasoning—great for quick formative checks.
Game #1: Line Them Up! A fast-paced team race where students arrange math cards in correct order by solving missing number problems from start to finish.
Game #2: Build a Garden! Students earn flowers, tools, and decorations for their garden each time they solve a missing number problem correctly. Chance cards keep gameplay unpredictable!
Game #3: Whole-Class “Bucket Filler!” Students move around the classroom solving task cards. Correct answers get dropped into a prize bucket—a perfect way to make review days interactive.
Game #4: Dinosaur Collector! Students solve equations, collect dinosaur cards, and compete to fill their dino board first.
Each activity includes recording sheets, answer keys, color and black-and-white versions, and easy-to-follow directions for flexible use in any classroom setting.
Teachers love how flexible and easy this missing numbers worksheets unit is to use. It’s ideal for:
Small-group instruction to target problem-solving strategies
Independent math centers for practicing unknown addends
Whole-class lessons or spiral review of addition and subtraction concepts
Morning work, homework, or early finisher bins
RTI or intervention groups to strengthen number relationships
Students will learn to think critically about what part of an equation is missing and how to use inverse operations to solve it—skills that set them up for success with higher-level math.
This 1st grade math unit aligns with Common Core 1.OA.8, helping students:
Determine the unknown whole number in an addition or subtraction equation
Relate addition and subtraction as inverse operations
Use reasoning to find missing numbers in equations with three whole numbers
This unit gives repeated, scaffolded practice for mastering unknowns in equations, preparing students for multi-step problem solving later on.
Teachers love that this missing numbers math unit blends hands-on games with skill-focused worksheets for complete coverage of this important concept. Each page and activity is carefully designed for first graders to visualize what’s missing, reason through equations, and explain their thinking.
Students love themed games like Build a Garden and Dinosaur Collector that turn practice into play. Teachers appreciate the no-prep format, clear layout, and consistency with other 1st Grade Math Units—making lesson planning quick and easy.
The balance between direct skill practice, interactive review, and problem-solving exploration keeps engagement high and learning meaningful.
This 1st Grade Math Unit is part of a complete year-long collection designed to make math practice simple, engaging, and effective. Each unit includes printable worksheets, math centers, and hands-on games that help students build conceptual understanding while having fun.
• See All 1st Grade Math Units
• 1st Grade Math Classroom Transformations (Themed Learning Days Perfect for Review!)
• 1st Grade Hands-On Math and Reading Activities
• 1st Grade Math Mysteries
• 1st Grade Math Task Cards
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Planning to use this resource with more than one teacher or classroom?
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