Groups of ten make addition a breeze! Use this nifty worksheet to learn about the "circle ten" shortcut.

Master addition with ten frames in this colorful worksheet!

Practice fluency by building a flourishing city in this second-grade worksheet!

Children add 10 or 1 to move through the hundreds chart to get to 100 in this fun addition worksheet.

Master the make 10 strategy for solving addition problems in this helpful worksheet!

Got a speed demon on your hands? See how fast he really is with this worksheet that asks him to think of 5 things he can do in under 10 seconds.

Master making ten to help you solve addition problems in this helpful worksheet!

Practice addition and subtraction within 10 in this St. Patrick's Day-themed math puzzle!

Get ready for some ghostly math problems! These word problems will challenge your child to practice addition and subtraction without the equations written out.

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

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

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

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

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

Math practice doesn't have to be scary! These Halloween word problems are a frighteningly fun way to practice addition and subtraction.

Your child will use his addition and subtraction skills in this Christmas word problems worksheet. Do some math at Christmas with this festive worksheet.

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!

Two-digit addition troubling your second grader? The only way to get the concept down is practice, practice ... and more practice!

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

Let the construction begin! Learners will use number sentences to make buildings in this inviting addition worksheet!

This snail would love to have its shell back! Enjoy a challenging dot to dot, where your little counter will have to skip-count by six.

Practice addition under 20 with visual models in this useful math worksheet!

Help your little one review her math facts with a fun coloring activity, where she'll solve and then color the addition and subtraction problems in each gift.

Guide your second grader through this fun, two-digit addition worksheet to boost her mental math skills.

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