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

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

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

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

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

Here's an Easter egg hunt with a twist! Each egg in this festive worksheet contains one simple addition problem for your first grader to solve.

The Easter bunny's been busy hiding colorful eggs all over the yard. Each one has a simple addition problem for your first grader to solve.

Looks like the Easter bunny has left some colorful treats for a special student! She'll need to solve all the simple addition problems in each egg.

Celebrate Valentine's Day while reviewing math facts! Your little one can solve these addition problems, and soon he'll be able to memorizing them.

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

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

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