What do cows like to listen to? To find the answer to this riddle, your kids will need to sharpen their skills in basic addition. So saddle up and let those addition skills go wild!

Master two-digit addition with these hundred chart problems!

Master two-digit addition in this second-grade worksheet!

Here's a supplemental math activity that beats boring textbook math. Your child will work on his addition facts, practicing to become an addition all star!

Hone your two-digit addition skills in this essential worksheet!

Your second grader will use his addition with carrying skills to determine Maxine's tulip's growth per week.

Practice place value and two-digit addition with this inviting worksheet!

Give children a gentle introduction to addition with help from this simple addition worksheet.

Need a more engaging way to practice math facts? Try this fun drawing exercise, where kids draw out the math problem before they solve it.

Adding up big numbers can be tricky. Teach your budding mathematician a helpful trick to keep the numbers in line with carrying!

Give your child an easy introduction to addition with this counting worksheet.

Buzz through some two-digit addition problems with your second grader!

If Patty blew up two balloons, and her mom blew up two, how many balloons are there? Help your child learn the basic idea behind addition with this worksheet.

Practice using place value charts to find sums with this addition worksheet for first and second graders!

Tackle two-digit addition with place value charts in this helpful worksheet!

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

Test your talent in two-digit addition with this colorful math worksheet!

This worksheet guides kids through simple word problems by presenting options for breaking up tens and ones.

These two-digit addition problems are ready for your second grader to solve.

Double the numbers equals double the fun! Practice adding with near-doubles in this engaging math worksheet.

Addition doesn't have to be puzzling—practice finding sums with these puzzle boxes!

Not only can your child practice her math facts with numbers between 1 and 20, she'll also practice writing addition problems with the correct symbols.

Count and add the Halloween pictures in this simple addition worksheet!

Get more practice making balanced equations with this first-grade math worksheet!

Count and add the Thanksgiving pictures in this simple addition worksheet! 

How many ways can your first grader make each number? Their addition and problem solving skills will get a boost with this one!

Santa has left 10 Christmas gifts under the tree. Each present has an addition or subtraction problem for your second grader to solve.

Prepare your first grader for Valentine's Day with these sweet math problems to help her review her addition math facts.

Kids use two-digit addition to solve a handful of word problems.

Learners will enjoy stacking and adding two-digit numbers with this appealing practice worksheet.