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

Learn how to make 10 with this kindergarten worksheet!

Sail smoothly through addition practice with this hundred chart worksheet for first and second graders!

Learn to make ten by using ten frames with this first-grade worksheet!

Practice addition within 10 using ten frames with the help of this addition strategies worksheet! 

Practice addition within 10 using ten frames with the help of this addition strategies worksheet! 

Get even more practice making 9 using ten frames with this kindergarten addition worksheet!

Add up the animal numbers with this colorful addition worksheet!

Master two-digit addition with the help of place value charts!

If your preschooler or kindergartener has an eye for style, this worksheet will help get them adding. Have them count the total number of hats when presented with two groups of hats.

Practice writing addition equations within 20 with this inviting and accessible math worksheet!

Learn to use the commutative property with three-addend addition expressions!

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

Learn your doubles facts with dominoes in this simple addition worksheet!

Can you decode the secret message hidden in these addition problems?

Build up your addition skills in this model-making addition worksheet!

Practice adding 4 to numbers within 10 with this first-grade addition worksheet!

Use a visual model to solve these two-digit addition problems!

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

Make your way to ten with this engaging addition worksheet!

Color your way to commutative confidence with this creative worksheet!

This underwater-themed worksheet is a playful way for learners to practice solving multi-step word problems.

This underwater-themed worksheet is a playful way for learners to practice solving multi-step word problems.

Make making ten a game with this extra-easy addition card game that comes with all the supplies you need.

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

Get more practice adding two-digit numbers on open number lines with this inviting addition worksheet!

The fourth in a series of six, this addition worksheet gives learners more practice composing numbers 11–19!

Use this visual model to practice adding 10 to two-digit numbers!

Practice adding multi-digit numbers in this second- and third-grade worksheet!

Test your talent in two-digit addition with this colorful math worksheet!