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Elementary School Addition Resources for '1-20'
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Addition Strategies
Addition Fact Fluency
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Elementary School Addition Resources for '1-20'
Filters
721 results
Search for: 1-20
✕
Math
✕
Elementary School
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Clear all
721 results
Number Line 1-20
Worksheet
Number Line 1-20
First Grade
Addition
Use this number line as a tool to practice adding and subtracting within 20.
Worksheet
Number Line 1-20
Worksheet
Number Line 1-20
Use this number line as a tool to practice adding and subtracting within 20.
First Grade
Addition
Worksheet
Water Rafting: Compose Numbers to Make 20 (Game 1)
Game
Water Rafting: Compose Numbers to Make 20 (Game 1)
First Grade
Addition
Children race down the river and across the finish line by choosing the equations that make 20.
Game
Water Rafting: Compose Numbers to Make 20 (Game 1)
Game
Water Rafting: Compose Numbers to Make 20 (Game 1)
Children race down the river and across the finish line by choosing the equations that make 20.
First Grade
Addition
Game
Treasure Diving: Compose Numbers to Make 20 (Game 1)
Game
Treasure Diving: Compose Numbers to Make 20 (Game 1)
First Grade
Addition
Find the sum of 12 plus 8 and other combinations that make 20 in this online diving adventure.
Game
Treasure Diving: Compose Numbers to Make 20 (Game 1)
Game
Treasure Diving: Compose Numbers to Make 20 (Game 1)
Find the sum of 12 plus 8 and other combinations that make 20 in this online diving adventure.
First Grade
Addition
Game
Addition to 20
Worksheet
Addition to 20
First Grade
Addition
Add it up! Assess your students’ understanding of addition by having them solve addition problems within 20.
Worksheet
Addition to 20
Worksheet
Addition to 20
Add it up! Assess your students’ understanding of addition by having them solve addition problems within 20.
First Grade
Addition
Worksheet
Spring Into Addition! One-Digit Addition Practice
Interactive Worksheet
Spring Into Addition! One-Digit Addition Practice
First Grade
Addition
Learners will take on 20 one-digit addition problems in this sweet springtime worksheet.
Interactive Worksheet
Spring Into Addition! One-Digit Addition Practice
Interactive Worksheet
Spring Into Addition! One-Digit Addition Practice
Learners will take on 20 one-digit addition problems in this sweet springtime worksheet.
First Grade
Addition
Interactive Worksheet
Adding Up To 20
Interactive Worksheet
Adding Up To 20
Kindergarten
Addition
Adding numbers within 20 is as easy as counting balloons with this colorful and simple worksheet.
Interactive Worksheet
Adding Up To 20
Interactive Worksheet
Adding Up To 20
Adding numbers within 20 is as easy as counting balloons with this colorful and simple worksheet.
Kindergarten
Addition
Interactive Worksheet
Glossary: Adding Within 20
Worksheet
Glossary: Adding Within 20
Second Grade
Addition
Use this glossary with the EL Support Lesson Plan: Adding Within 20.
Worksheet
Glossary: Adding Within 20
Worksheet
Glossary: Adding Within 20
Use this glossary with the EL Support Lesson Plan: Adding Within 20.
Second Grade
Addition
Worksheet
Missing Number Addition to 20
Interactive Worksheet
Missing Number Addition to 20
First Grade
Addition
Gain expertise with addition sentences within 20 in this helpful math worksheet!
Interactive Worksheet
Missing Number Addition to 20
Interactive Worksheet
Missing Number Addition to 20
Gain expertise with addition sentences within 20 in this helpful math worksheet!
First Grade
Addition
Interactive Worksheet
Addition Facts Within 20
Exercise
Addition Facts Within 20
First Grade
Addition
Limit addition to within 20 for students new to two digit addition in this engaging exercise.
Exercise
Addition Facts Within 20
Exercise
Addition Facts Within 20
Limit addition to within 20 for students new to two digit addition in this engaging exercise.
First Grade
Addition
Exercise
Match Addition Facts to 20
Game
Match Addition Facts to 20
Second Grade
Addition
Help second graders learn about addition facts to 20 in this online matching activity.
Game
Match Addition Facts to 20
Game
Match Addition Facts to 20
Help second graders learn about addition facts to 20 in this online matching activity.
Second Grade
Addition
Game
Vocabulary Cards: Adding Within 20
Worksheet
Vocabulary Cards: Adding Within 20
Second Grade
Addition
Use these vocabulary cards with the EL Support Lesson Plan: Adding Within 20.
Worksheet
Vocabulary Cards: Adding Within 20
Worksheet
Vocabulary Cards: Adding Within 20
Use these vocabulary cards with the EL Support Lesson Plan: Adding Within 20.
Second Grade
Addition
Worksheet
Bubble Buster: Addition to 20
Game
Bubble Buster: Addition to 20
First Grade
Addition
Kids must move fast to find addition pairs that total a target sum within 20.
Game
Bubble Buster: Addition to 20
Game
Bubble Buster: Addition to 20
Kids must move fast to find addition pairs that total a target sum within 20.
First Grade
Addition
Game
Addition to 20 Check-in
Interactive Worksheet
Addition to 20 Check-in
First Grade
Addition
It's time to check those addition skills! Use this to assess your student’s abilities to add within 20.
Interactive Worksheet
Addition to 20 Check-in
Interactive Worksheet
Addition to 20 Check-in
It's time to check those addition skills! Use this to assess your student’s abilities to add within 20.
First Grade
Addition
Interactive Worksheet
Roadblock: Addition Within 20
Game
Roadblock: Addition Within 20
First Grade
Addition
To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!
Game
Roadblock: Addition Within 20
Game
Roadblock: Addition Within 20
To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!
First Grade
Addition
Game
Making 10 and 20 Using Addition
Interactive Worksheet
Making 10 and 20 Using Addition
First Grade
Addition
Master the math of making 10 and 20 with two addends in this helpful addition worksheet!
Interactive Worksheet
Making 10 and 20 Using Addition
Interactive Worksheet
Making 10 and 20 Using Addition
Master the math of making 10 and 20 with two addends in this helpful addition worksheet!
First Grade
Addition
Interactive Worksheet
Adding Within 20 Using Ten Frames
Worksheet
Adding Within 20 Using Ten Frames
First Grade
Addition
Add numbers within 20 using ten frames with this first-grade math worksheet!
Worksheet
Adding Within 20 Using Ten Frames
Worksheet
Adding Within 20 Using Ten Frames
Add numbers within 20 using ten frames with this first-grade math worksheet!
First Grade
Addition
Worksheet
Ski Racer: Addition to 20
Game
Ski Racer: Addition to 20
Second Grade
Addition
Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!
Game
Ski Racer: Addition to 20
Game
Ski Racer: Addition to 20
Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!
Second Grade
Addition
Game
Assessment: Addition to 20
Worksheet
Assessment: Addition to 20
First Grade
Addition
It's time to check in on those addition skills! Use this math activity to assess your students’ understanding of addition by having them solve addition problems within 20.
Worksheet
Assessment: Addition to 20
Worksheet
Assessment: Addition to 20
It's time to check in on those addition skills! Use this math activity to assess your students’ understanding of addition by having them solve addition problems within 20.
First Grade
Addition
Worksheet
Adding Within 20 Using Ten Frames: Missing Numbers
Worksheet
Adding Within 20 Using Ten Frames: Missing Numbers
First Grade
Addition
Practice finding missing numbers while adding within 20 using ten frames!
Worksheet
Adding Within 20 Using Ten Frames: Missing Numbers
Worksheet
Adding Within 20 Using Ten Frames: Missing Numbers
Practice finding missing numbers while adding within 20 using ten frames!
First Grade
Addition
Worksheet
Addition Squares to 20 #1
Interactive Worksheet
Addition Squares to 20 #1
First Grade
Addition
Practice addition while solving number puzzles in this engaging worksheet for first and second graders!
Interactive Worksheet
Addition Squares to 20 #1
Interactive Worksheet
Addition Squares to 20 #1
Practice addition while solving number puzzles in this engaging worksheet for first and second graders!
First Grade
Addition
Interactive Worksheet
Thanksgiving Addition #1
Interactive Worksheet
Thanksgiving Addition #1
First Grade
Addition
Children practice addition within 20 in this fall-themed math worksheet.
Interactive Worksheet
Thanksgiving Addition #1
Interactive Worksheet
Thanksgiving Addition #1
Children practice addition within 20 in this fall-themed math worksheet.
First Grade
Addition
Interactive Worksheet
Valentine's Day Puzzle: Addition and Subtraction Within 20
Interactive Worksheet
Valentine's Day Puzzle: Addition and Subtraction Within 20
First Grade
Addition
Practice addition and subtraction within 20 with this sweet Valentine’s Day math puzzle!
Interactive Worksheet
Valentine's Day Puzzle: Addition and Subtraction Within 20
Interactive Worksheet
Valentine's Day Puzzle: Addition and Subtraction Within 20
Practice addition and subtraction within 20 with this sweet Valentine’s Day math puzzle!
First Grade
Addition
Interactive Worksheet
Spring Kindergarten Math Assessment: Addition within 20
Interactive Worksheet
Spring Kindergarten Math Assessment: Addition within 20
Kindergarten
Addition
Use these animal themed math problems to assess your students’ ability to solve addition problems within 20.
Interactive Worksheet
Spring Kindergarten Math Assessment: Addition within 20
Interactive Worksheet
Spring Kindergarten Math Assessment: Addition within 20
Use these animal themed math problems to assess your students’ ability to solve addition problems within 20.
Kindergarten
Addition
Interactive Worksheet
Treasure Diving: Compose Numbers to Make 20 (Game 3)
Game
Treasure Diving: Compose Numbers to Make 20 (Game 3)
First Grade
Addition
In this energizing math game, think about how different numbers can add up to 20.
Game
Treasure Diving: Compose Numbers to Make 20 (Game 3)
Game
Treasure Diving: Compose Numbers to Make 20 (Game 3)
In this energizing math game, think about how different numbers can add up to 20.
First Grade
Addition
Game
Treasure Diving: Compose Numbers to Make 20 (Game 2)
Game
Treasure Diving: Compose Numbers to Make 20 (Game 2)
First Grade
Addition
Compose numbers to make 20 and build first grade addition skills in each round of this online game.
Game
Treasure Diving: Compose Numbers to Make 20 (Game 2)
Game
Treasure Diving: Compose Numbers to Make 20 (Game 2)
Compose numbers to make 20 and build first grade addition skills in each round of this online game.
First Grade
Addition
Game
Water Rafting: Compose Numbers to Make 20 (Game 3)
Game
Water Rafting: Compose Numbers to Make 20 (Game 3)
First Grade
Addition
Children use their mental math skills to determine which equations add up to 20 in this math game.
Game
Water Rafting: Compose Numbers to Make 20 (Game 3)
Game
Water Rafting: Compose Numbers to Make 20 (Game 3)
Children use their mental math skills to determine which equations add up to 20 in this math game.
First Grade
Addition
Game
St. Patrick's Day Puzzle: Addition and Subtraction Within 20
Interactive Worksheet
St. Patrick's Day Puzzle: Addition and Subtraction Within 20
First Grade
Addition
Learners practice addition and subtraction within 20 in this St. Patrick's Day-themed math puzzle!
Interactive Worksheet
St. Patrick's Day Puzzle: Addition and Subtraction Within 20
Interactive Worksheet
St. Patrick's Day Puzzle: Addition and Subtraction Within 20
Learners practice addition and subtraction within 20 in this St. Patrick's Day-themed math puzzle!
First Grade
Addition
Interactive Worksheet
Finding True Number Sentences Maze #1
Interactive Worksheet
Finding True Number Sentences Maze #1
First Grade
Addition
Engage young learners with this fun math maze featuring addition and subtraction facts within 20!
Interactive Worksheet
Finding True Number Sentences Maze #1
Interactive Worksheet
Finding True Number Sentences Maze #1
Engage young learners with this fun math maze featuring addition and subtraction facts within 20!
First Grade
Addition
Interactive Worksheet
Make 11–19 in Ten Frames #1
Worksheet
Make 11–19 in Ten Frames #1
Kindergarten
Addition
Get practice with addition facts within 20 with this colorful kindergarten math worksheet!
Worksheet
Make 11–19 in Ten Frames #1
Worksheet
Make 11–19 in Ten Frames #1
Get practice with addition facts within 20 with this colorful kindergarten math worksheet!
Kindergarten
Addition
Worksheet
Make 11-19: Write the Equation #1
Interactive Worksheet
Make 11-19: Write the Equation #1
Kindergarten
Addition
Practice writing addition equations within 20 with this inviting and accessible math worksheet!
Interactive Worksheet
Make 11-19: Write the Equation #1
Interactive Worksheet
Make 11-19: Write the Equation #1
Practice writing addition equations within 20 with this inviting and accessible math worksheet!
Kindergarten
Addition
Interactive Worksheet
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