Add one and find the sum! In this game, children practice number and pattern recognition skills.

All aboard! Kids solve addition problems on a number line using 1, 10, and 100 unit manipulatives.

Reinforce your child's three-digit addition skills with this ski-themed learning adventure!

Get ready to add 10 more! Analyze expressions like "110 + 10" and calculate three-digit sums.

What’s the sum? Add 10 to that number in a three-digit addition game for second graders.

Build up second graders’ math knowledge with a diving game about three-digit addition.

Practice addition to 100 using multiples of 10! This game highlights two-digit addition math.

Add 100 to three-digit numbers and find the matching sums in this exciting Dino Fishing game.

Practice two-digit addition and adding multiples of 10 in this Dino Fishing math game.

First graders hone their addition skills of adding one more with this water rafting math adventure!

Take a deep dive into the addition strategy of adding one more with this underwater math adventure!

Kids practice two-digit addition to 100 in this action-packed number line game.

Are you ready to add 10 to numbers over 100? Reinforce students’ learning in this ski-themed game.

Children dig up dinosaur fossils by adding 10 to multiples of 100 in this prehistoric game.

Practice essential first grade addition skills in this river-themed math game!

Hone first grade addition strategies with this underwater math adventure!

How do you make 10? Dive into a math adventure and discover simple equations that add up to 10.

Find the sum of 12 plus 8 and other combinations that make 20 in this online diving adventure.

In this water rafting adventure, children will be asked to choose the equation that adds up to 10.

Children race down the river and across the finish line by choosing the equations that make 20.

Kids practice addition and subtraction with manipulatives in this silly shopping game.

Children flex their mental math muscles as they try to quickly find the equations that add up to 10.

First graders gain confidence with addition and decomposing numbers in this fun water rafting game!

Kids practice adding and taking away 10 in this silly game show.

Which equation makes 10? Help young mathematicians figure it out in this treasure diving math game.

Compose numbers to make 20 and build first grade addition skills in each round of this online game.