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

Your students will need their addition facts and a bit of logic to solve this KenKen® math puzzle.

Enjoy an egg-cellent Easter review of addition facts! Hunt for a solution in each colorful egg, with simple addition problems for your first grader to solve.

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

In the Halloween Hundreds Chart Game, players try to get to the jack-o’-lantern, or 100, faster than their opponent. In this addition worksheet, students will use the game boards of two fictional players to answer questions and write number sentences.

Go nuts for math practice! Your first grader will learn how to solve math problems in sentence form. He'll add and subtract different kinds of nuts.

Make math practice a little less boring with an addition coloring page! Your first grader can do a few addition problems as he colors the balloons.

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.

A colorful lollipop and ribbon is all you need to ignite your child's love of math! Solve each equation, and use the sums to fill in blank spaces with color.

Enjoy a Halloween-themed race to 100 as students imagine units, rods, and flats as candies, broomsticks, and pumpkins. Players will use this pumpkin race board to regroup between place values up to the hundreds place in order to win the game!

Put a little love into math practice with these sweet Valentine's Day addition problems, where your first grader can review his math facts.

Tackle ten frames with confidence in this helpful addition worksheet!

Practice addition within 10 with this Halloween math workheet!

Practice addition within 10 with this Halloween math workheet!

In this draw and add challenge worksheet, children draw pictures of the items they are adding in order to visualize their work.

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

Word problems are a great way to apply math knowledge to real-world situations. Check in on your first graders’ abilities to solve addition word problems with this handy assessment.

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Would your first grader rather color fairies than do her math? With this worksheet, she can do both! This fairy practice sheet focuses on two-digit addition.

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

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

Practice adding with dice in this unique number bonds worksheet!

Not only does soup make you feel better, it can help you learn math too! Introduce your first grader to word problems by putting together some hearty soup.

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

Master addition with ten frames in this colorful worksheet!

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

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