Liven up addition for your first grader; this brightly colored worksheet's full of fireworks and fun.

Who's the mystery president? Your second grader can find out by skip counting by threes to complete the dot-to-dot.

Can your first grader dig through a leafy mess to find the numbers that are added together for each clover? He'll come out of it with stronger addition skills!

Test your second grader's knowledge of addition and subtraciton with these challenging Christmas word problems!

Challenge your second grader's knowledge of addition and subtraction with these festive Christmas word problems!

Santa has left lots of colorful presents filled with addition facts for your first grader to practice!

Celebrate Easter with some math! Your first grader will read word problems and then solve basic addition equations.

First and second graders will LOVE finding the missing numbers in this adorable Valentine’s Day math puzzle!

Ho ho ho! Santa has left lots of colorful presents filled with addition facts for your first grader to practice.

These Christmas presents are missing some color! Challenge your second grader to review addition and subtraction facts by solving the equations in these gifts.

Looks like Santa has been here! These Christmas gifts each have an addition or subtraction problem for your second grader to solve.

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.

Happy Valentine's Day! Your first grader will color all the candies in this heart-shaped box while solving some sweet math problems.

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.

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.

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

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.

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

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

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

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

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

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!

Practice addition within 10 with this Halloween math workheet!

Practice addition within 10 with this Halloween math workheet!

Practice addition within 10 with this Halloween math workheet!

Practice addition within 10 with this Halloween math workheet!

Practice addition within 20 with this Halloween math workheet!

If you want to get your child in the Valentine's Day mood and improve her addition and mental math ability, this pretty printable is sure to do the trick.