Kids will learn more about inverse operations by reviewing their subtraction problems. Use addition, the inverse of subtraction, to review problems.

This silly alligator is on the hunt for a big meal! Introduce your child to "greater than" and "less than" using this greedy gator and his giant appetite.

Practice adding doubles with this colorful worksheet!

This worksheet presents a whole new, wacky way to learn number order.

Your kid will help bring the whole fact family together by finding the fact family number sentences in the puzzle and circling them.

Kids color and count teacups with the number 20 on this kindergarten math worksheet, which offers practice recognizing and writing whole numbers and counting.

Help kids understand fractions visually. As they color in the plants according to the fractions, they'll see that fractions are just parts of a whole.

Help your child practice his time telling with this printable worksheet, which focuses on whole hours.

Kids find the missing numbers to complete the honeycomb number grid. This first grade math worksheet helps kids practice counting whole numbers to 100.

Kids find the missing numbers to complete the egg number grid. This first grade math worksheet helps kids practice counting whole numbers to 100.

Kids can let their imaginations fly on this complete-the-picture drawing page. Kids fill in the missing lines to make the pictures whole.

Kids find the missing numbers to complete the iceberg grid. This first grade math worksheet offers practice counting whole numbers to 100 and counting by fives.

Is this monster crazy, creepy, or cute? Don't let your kindergartener decide until she's colored the whole thing, and matched each color using the number chart.

Your child will practice subtraction, by using inverse operations. Find the missing numbers to solve the subtraction problems.

Your child will develop the skills necessary to recognize patterns by completing inverse operations as well make a connection between addition and subtraction.

Your child will use his knowledge of inverse operations to build another fact family number sentence and even complete a fact triangle.

Math is about more than just numbers, there's a whole new vocabulary to learn, too! In this fun worksheet, first graders will become familiar with words related to subtraction as they practice their math skills.

Kids find the missing numbers and use their knowledge of inverse operations to solve the addition and subtraction problems by building fact family houses.

Practice adding tens on an open number line with this first-grade math worksheet!

Get more practice adding tens on an open number line with this first-grade math worksheet!

Get even more practice adding tens on an open number line with this first-grade math worksheet!

Have your child complete the fact family. He will hone his math skills while making connections between addition and subtraction.

Have your child work backwards to solve addition problems and learn more about the additive inverse.