Practice addition and subtraction with this first-grade hundred chart worksheet!

First graders explore two-digit numbers using place value models in this number sense worksheet!

Explore two-digit numbers using place value models with this first-grade number sense worksheet!

Master addition with ten frames in this colorful worksheet!

Get practice writing two-digit subtraction equations using an number line with this first-grade math worksheet!

Give learners more practice subtracting tens from two-digit numbers using a number line with this hands-on worksheet!

Help first and second graders practice solving near-doubles facts using this fun worksheet!

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

Give learners practice subtracting tens from two-digit numbers using a number line with this hands-on worksheet!

Your first grader will get into the rhythm of the addition beat and dance her way to arithmetic mastery as she completes this colorful math worksheet.

Students hone subtraction skills by using their understanding of addition with this inviting math worksheet!

Students further hone subtraction skills by using their understanding of addition with this appealing math worksheet!

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

Practice subtraction within 20 with this Halloween math workheet!

Practice addition within 10 with this Halloween math workheet!

Get more practice performing addition within 100 using open number lines with this first-grade math worksheet!

For each two-digit number on this first grade math worksheet, kids determine the place value of each digit, then write each digit in the tens or ones column.

For each two-digit number on this first grade math worksheet, kids determine the place value of each digit, then write each digit in the tens or ones column.

Children practice subtraction within 20 in this fall-themed math worksheet.

Does your first grader need help with two-digit addition? This colorful fairy-filled worksheet is a great way to give her the practice she needs.

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.

Get even more fun practice balancing addition and subtraction equations with this lower grades math worksheet!

Use your knowledge of place value to solve addition problems with this first- and second-grade worksheet!

Learn to use the commutative property with three-addend addition expressions!

Combining visual with number addition, this first grade math worksheet helps children understand the concept of addition.

Count and subtract the Halloween pictures in this simple subtraction worksheet!

Build with blocks in this colorful worksheet on three-dimensional shapes!