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Add it up! Assess your students’ understanding of addition by having them solve addition problems within 20.

Give your young math learner practice composing numbers 11–19 with this addition strategies worksheet!

Use this glossary with the EL Support Lesson Plan: Adding Within 20.

The second in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The third in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The fourth in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

The fifth in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

Gain expertise with addition sentences within 20 in this helpful math worksheet!

Use this number line as a tool to practice adding and subtracting within 20.

Use these vocabulary cards with the EL Support Lesson Plan: Adding Within 20.

It's time to check those addition skills! Use this to assess your student’s abilities to add within 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.

Master the math of making 10 and 20 with two addends in this helpful addition worksheet!

Add numbers within 20 using ten frames with this first-grade math worksheet!

Practice finding missing numbers while adding within 20 using ten frames!

Practice addition and subtraction within 20 with this sweet Valentine’s Day math puzzle!

Learners practice addition and subtraction within 20 in this St. Patrick's Day-themed math puzzle!

Achieve addition mastery in this engaging math quest!

It’s not magic, it’s math! Practice finding correct sums to addition problems in this inviting worksheet.

Double your knowledge of doubles with the help of this inviting addition worksheet!

Your second grader won't mind practicing addition with carrying with the friendly snail companions adorning the sides of this worksheet!

Make your way through a maze of addition problems in this engaging worksheet!

Monster mathematicians, here is a haunting Halloween math sheet full of addition and subtraction word problems to boost brainpower!

Help Santa color his gifts. With some math know-how and a few festive crayons, your child just might save Christmas.

Help your little elf get some Christmas math practice in with these holiday word problems. He'll work on subtraction, division, and more in this math worksheet.

Shape up your addition skills with these square puzzles!

Let’s see how well you know your addition facts!

Strengthen your fluency skills with this beach-themed addition worksheet for first and second graders!

Master your addition facts with this colorful, inviting math worksheet!

Practice addition while solving number puzzles in this engaging worksheet for first and second graders!