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Addition within 20 Resources

If your students have mastered adding numbers under 10, move them on up with these resources for adding numbers within 20. These worksheets provide students with plenty of practice adding. There are also several lesson plans to give you ideas for teaching students how to add numbers within 20. If students struggle, you may want to review our addition within 10 lesson plans.

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Addition within 20

Addition Pizza Party: 1-10

Kids practice concrete counting and simple addition at the pizza parlor.

Fish Bowl Addition

Kids help Birdee and Cuz-Cuz count up all the fish they won in this addition game.

Practice Test: Word Problems

This quick practice test offers simple addition and subtraction word problems to help your first grader review.

Addition and Subtraction Practice

Help your second grader get a good review of adding and subtracting double-digits with this practice sheet.

Find the Math Path

Give your child practice with his math skills with this printable worksheet, which is all about subtraction and addition.

Secret Agent Addition

Only your kid's addition skills can help Secret Agent Floyd defeat the evil El Gato.

All in the Fact Family

Number sentences make more sense when picking apart fact families and putting them back together! This colorful workbook helps kids make connections between addition and subtraction.

Math Fact: Relationship Between Addition & Subtraction

Kids add, subtract, or use math facts they have committed to memory to fill in the missing numbers in the fact families on this third grade math worksheet.

Adding it All Up

In this lesson, students will learn how to add a one-digit number to a two-digit number. This will help students build upon the skills needed for regrouping larger numbers.

Bubble Buster: Addition to 20

Kids must move fast to find addition pairs that total a target sum within 20.

Fish School Addition

Time for school! Have your first grader take a look at this school (school of fish, that is) and solve the addition problems.

Addition Mission: Facts Practice

This workbook gives first graders lots of practice with addition and the various concepts within the addition family.

Owl Color-by-Number

This addition page is a hoot! Help your kid practice math facts with this owl color-by-number printable!

Add Up the Fantasy Coins

Kids solve a multi-step word problem by counting out the right number of coins.

Fact Family Houses

This fact family worksheet gets kids to add and subtract. In this fact family worksheet, third graders will fill in the missing numbers in fact family houses.

Addition Within 20 Roadblock Game

To help Roly move through obstacles, kids learn a regrouping strategy to make addition within 20 easily!

Count and Add Blocks

This worksheet takes your child a step farther than one-digit addition. As he completes the page, he'll learn to add a two-digit number to a one-digit number.

First Grade Math

This workbook offers good practice for first graders learning the basics of mathematics.

Addition Math Puzzles

Put your second grader's math skills to the test with mathematical puzzle boxes. He'll practice doing addition facts in his head, and build logic skills.

Where is my Fact Family?

This nifty lesson helps kinesthetic learners reinforce their knowledge of the commutative property. Students will love the challenge of matching equations with their fact families.

Missing Numbers: Math Review

Help! The numbers in our equations have run away and left their answers alone! In this lesson, students will review their math facts and knowledge to solve Ken Ken like puzzles and bring the numbers back to their places.

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.

Ski Race: Addition to 30

Kids practice mentally adding sums up to 30 in this fast-paced addition race.

In the chill of winter, keep your child's brain warmed up with some single-digit addition. This is a great chance for her to brush up on her math facts.

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