In this worksheet, learn how to add the tens first when using a hundreds chart.

Give your kids extra addition practice with this worksheet, which teaches them that it's best to focus on the tens first.

Test your skills with doubles facts in this addition worksheet!

Santa's left 10 Christmas gifts under the tree, each containing an addition or subtraction problem for your student. She'll also get to do a bit of coloring!

Practice identifying doubles facts with this appealing worksheet!

Make math fun with this doubles facts maze! 

Solve near-doubles facts with this appealing worksheet!

Strengthen your fluency skills with this beach-themed addition worksheet for first and second graders!

Practice solving near-doubles facts with this engaging worksheet!

Master your addition facts with this colorful, inviting math worksheet!

Learn how to use doubles facts to solve other addition problems!

Let’s see how well you know your addition facts!

Try solving near-doubles facts with these nine problems!

Solve an enjoyable maze of doubles facts with this fun one-page worksheet!

Your young learner can have a blast experimenting with addition facts in the Math Lab!

Double up on doubles practice in this worksheet of matching pairs!

Help first and second graders practice solving near-doubles facts using this fun worksheet!

3...2...1...go! Students will apply their knowledge of addition facts with this speedy worksheet!

This worksheet is a fun way to practice skip counting by seven, addition facts, and number sense skills.

This worksheet is a fun way to practice skip counting by nine, addition facts, and number sense skills.

Strengthen your second grader's ability to tackle his addition facts by adding up the number strings, and uncover a fun fact when he's finished.

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

Build your child's confidence in knowing math facts, so that he gets nothing but net. Take a shot at addition and subtraction problems!

Enjoy a fun coloring activity while you review simple math facts! Santa has left 10 gifts, each with an addition or subtraction problem to solve.

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.