Ninjas can be very mysterious and secretive. Solve the riddle with some addition to unlock one of their secrets!

These equations have lost their signs! Only one sign — plus or minus — can make each equation true.

Keep your second grader entertained--and teach her two-digit addition skills at the same time--with this super hero-themed worksheet.

Kids practice reverse two-digit addition and subtraction to find the missing numbers in this 2nd grade math worksheet.

Sharpen your mental math skills with this second- and third-grade compensation worksheet! 

For double-digit addition practice, try this second grade math worksheet. Don't forget to carry that one!

Keep the holiday spirit alive as your little one reviews his addition and subtraction with these Christmas word problems!

Don’t let two-digit addition intimidate you; instead, use compensation to make friendly tens!

Discover combinations that make 10 with this engaging cut-and-paste worksheet, designed for first and second graders!

Learn a new addition strategy in this essential worksheet!

This addition worksheet teaches your kid one way to solve multiple-step word problems by using a number line.

Review addition fact families with your child to help him reach for the stars! A mix of addition and subtraction will sharpen his math skills.

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

Lengthen your learners' addition and subtraction skills using number line models and real-world scenarios!

Hit one out of the park with some baseball addition! Your child will get to practice and start memorizing his addition facts.

Sharpen your single-digit addition skills with this helpful first- and second-grade worksheet!

Improve your fourth grader's math addition skills and have him complete a fun coloring activity using one simple worksheet.

This busy beaver is boosting his addition skills one problem at a time. Help your kid get in on the addition fun!

Build basic math skills with this practice sheet, full of one-digit addition equations for your child to practice and start memorizing.

Students draw ten and one dollar bills for practice adding multiples of ten to two-digit numbers in this money math worksheet.

Create models of addition problems with this compensation worksheet for second and third graders!

Make math practice fun with some baseball addition! Your child will get to practice his addition facts (simple one-digit addition problems).