Addition within 20 Resources

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Addition Within 20
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Christmas Word Problems #2
Christmas Word Problems #2
Worksheet
Christmas Word Problems #2
Use this Christmas word problems worksheet to strengthen your kid's math skills. This worksheet will prep your kid to do everyday math, even over winter break.
2nd grade
Math
Worksheet
Christmas Word Problems #8
Christmas Word Problems #8
Worksheet
Christmas Word Problems #8
Christmas enthusiasts will exercise a variety of math skills in this Christmas worksheet. Help your kid practice math with this Christmas math worksheet.
2nd grade
Math
Worksheet
Christmas Word Problems #10
Christmas Word Problems #10
Worksheet
Christmas Word Problems #10
Test your second grader's knowledge of addition and subtraciton with these challenging Christmas word problems!
2nd grade
Math
Worksheet
Single and Double-Digit Addition Subtraction Assessment
Single and Double-Digit Addition Subtraction Assessment
Worksheet
Single and Double-Digit Addition Subtraction Assessment
This addition and subtraction exercise is designed to assess your students' math skills at the beginning of third grade.
3rd grade
Math
Worksheet
Christmas Word Problems #19
Christmas Word Problems #19
Worksheet
Christmas Word Problems #19
Feel the Christmas spirit with these Christmas word problems. Kids will calculate the numbers of carolers and more in this fun Christmas math worksheet.
2nd grade
Math
Worksheet
Add All Three: Adding Three Numbers
Add All Three: Adding Three Numbers
Worksheet
Add All Three: Adding Three Numbers
If your child is looking for a number challenge, we've got the worksheet for her. She may be a whiz at adding two numbers, but can she add three numbers?
1st grade
Math
Worksheet
Hanukkah Math
Hanukkah Math
Worksheet
Hanukkah Math
This worksheet shares Hanukkah themed math problems with numbers under 10.
1st grade
Math
Worksheet
Build Your Own Number Bond
Build Your Own Number Bond
Worksheet
Build Your Own Number Bond
It’s time for students to make their own number bonds! In this activity, students will be given number sentences to solve and represent using number bonds.
1st grade
Math
Worksheet
Writing Christmas-Themed Word Problems
Writing Christmas-Themed Word Problems
Lesson Plan
Writing Christmas-Themed Word Problems
Your students will turn boring number sentences into fun, Christmas-themed word problems! They will get practice with math and writing as they use their creative juices to write and solve single digit addition word problems.
1st grade
Math
Lesson Plan
Number Line Frog Leap One-Digit Addition
Number Line Frog Leap One-Digit Addition
Worksheet
Number Line Frog Leap One-Digit Addition
Single-digit addition is a leap away using number lines like the ones on this worksheet.
1st grade
Math
Worksheet
Christmas Word Problems #12
Christmas Word Problems #12
Worksheet
Christmas Word Problems #12
These Christmas word problems will get your child doing math as he thinks about presents under the tree. Try these word problems with your child.
2nd grade
Math
Worksheet
Assessment: Addition to 20
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.
1st grade
Math
Worksheet
Spring Math Assessment Subtraction within 20
Spring Math Assessment Subtraction within 20
Worksheet
Spring Math Assessment Subtraction within 20
Use these fun toy themed math problems to assess your students’ ability to solve addition and subtraction problems within 20.
Kindergarten
Math
Worksheet
The Numbers Are Missing!
The Numbers Are Missing!
Worksheet
The Numbers Are Missing!
Uh-oh, the numbers have gone missing! Help students learn that the equals sign means “the same as” as they fill in missing factors to balance the equations.
1st grade
Math
Worksheet
Addition Color by Number
Addition Color by Number
Worksheet
Addition Color by Number
Looking for a different way to engage your child with his addition facts? This color by number underwater scene might do the trick!
1st grade
Math
Worksheet
Colorful Christmas Math #10
Colorful Christmas Math #10
Worksheet
Colorful Christmas Math #10
Help your little one review her math facts with a fun coloring activity, where she'll solve and then color the addition and subtraction problems in each gift.
2nd grade
Math
Worksheet
Christmas Word Problems #9
Christmas Word Problems #9
Worksheet
Christmas Word Problems #9
Have a little math with your Christmas celebration with holiday word problems. Kids will stretch their math skills with this Christmas worksheet.
2nd grade
Math
Worksheet
Christmas Counting #1
Christmas Counting #1
Worksheet
Christmas Counting #1
Santa's sleigh is filled with toys and candy canes! Can your child count how many are there? Practice simple addition in the spirit of Christmas.
Kindergarten
Math
Worksheet
Break the Numbers Down!
Break the Numbers Down!
Worksheet
Break the Numbers Down!
Students learn to decompose numbers through this fun activity. After being given a number, young mathematicians come up with their own way to decompose the number into two different numbers.
1st grade
Math
Worksheet
Colorful Christmas Math #9
Colorful Christmas Math #9
Worksheet
Colorful Christmas Math #9
Should this Christmas present be red, yellow, or green? It's up to your young mathematician to find out in this Christmas math and color-by-number worksheet.
2nd grade
Math
Worksheet
Fish School Addition
Fish School Addition
Worksheet
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.
1st grade
Math
Worksheet
Adding Within 20
Adding Within 20
Lesson Plan
Adding Within 20
This scaffolded EL lesson will help your students fluently add within 20, while reinforcing parts of a whole. Use as a pre-lesson for Addition: Over in a Flash, or as a stand alone activity.
2nd grade
Math
Lesson Plan
Addition Facts Within 20
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.
3rd grade
Math
Exercise
Christmas Word Problems #6
Christmas Word Problems #6
Worksheet
Christmas Word Problems #6
Your child will use his addition and subtraction skills in this Christmas word problems worksheet. Do some math at Christmas with this festive worksheet.
2nd grade
Math
Worksheet
Three Addend Word Problems
Three Addend Word Problems
Worksheet
Three Addend Word Problems
Teach your students to solve word problems with three addends. Plenty of space is provided for students to show their thinking!
1st grade
Math
Worksheet

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.

Accessible Addition Within 20 Resources

The need to calculate simple equations often comes up in day-to-day life—exchanging money, following recipes and determining elapsed time are a few common examples. The addition within 20 resources housed in the Learning Library caters to kids who start to dip into two-digit math.

The printable worksheets provide assorted assignments that sharpen this skill. Kids can practice finding the sum with traditional vertical and horizontal equations. There are also many addition-within-20 word problem printouts. Some of the worksheets are illustrative, like with spaceships or rainbow fish, to deliver visual and creative math lessons.

Hands-on activities help students refine what they have learned in the classroom. A creative game called Pocket Math includes the whole family. Everyone has to wear as many pockets as possible and young learners practice counting them all up. Bowling for Addition turns a DIY bowling game into a counting opportunity. The water bottle pins are marked with a value that students add up once the pins are knocked down.

Kids continue to build their counting capabilities with the online games, guided lessons, printable workbooks, interactive stories and other addition within 20 resources in the library.