Get acquainted with one of our nation's most famous buildings, the Washington Monument, by building a small paper model!

Subtract from 10 on a visual model with this appealing worksheet!

Practice adding tens with a visual model in this helpful worksheet!

Build up your addition skills in this model-making addition worksheet!

Use this visual model to practice adding 10 to two-digit numbers!

Learn to subtract tens with a visual model in this first-grade worksheet!

Invite first graders to dive into the world of two-digit numbers using place value models!

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

Practice addition under 20 with visual models in this useful math worksheet!

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

Pair up problems and models in this first-grade subtraction worksheet!

Learn about the commutative property with this beach-themed worksheet!

Help first graders visualize the commutative property of addition with this number line worksheet!

Learn how the commutative property works with this colorful worksheet!

Practice a vital addition skill with this bright, summery worksheet!

Learn a new addition strategy in this essential worksheet!

Master addition with ten frames in this colorful worksheet!

Practice some hands-on storytelling with these shadow puppets, modeled after The Three Little Pigs.

Students use open number lines to help them write addition equations in this first-grade practice worksheet!

Get more practice adding multiples of 10 on an open number line with this colorful worksheet!

Your child can create his own miniature pop-up neighborhood complete with fire station, fire truck, and all with this fun printable.

With this printable your child can create a pop-up neighborhood complete with houses, trees, and a mini pop-up boy!

Children will fill in the missing numbers to complete a hundreds counting chart in this number sense worksheet.

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

Sharpen first graders’ subtraction skills with this colorful ten frames matching worksheet!

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

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

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

Practice those doubles facts up to 12 with this fun dice-themed addition worksheet!

Practice adding doubles with this colorful worksheet!