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

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

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

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

Kids click on bubbles that add up to 10 to try to keep the bubbles from overflowing.

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

Children practice addition within 10 in this water rafting adventure!

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.

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

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

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

Which equation looks right? Review fact families and addition to 10 in this educational math game.

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

Ask your child to practice adding up to 10 and breaking down math equations in this math race.

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!

In this water-themed race, first graders use math and logic to fill in each addition equation.

Kids solve two- and three-digit addition problems by regrouping in order to help the Professor grow out his beard.

Children hone their knowledge of addition and missing addends in a race to reach the sunken treasure.

Think about how numbers are related in this interactive game about addition fact families.

Addition experts, come on down! Practice quick-thinking two-digit addition in this educational game that tests off-the-cuff adding skills.

Children practice adding two-digit and one-digit numbers to dig up fossils in this math game.

Learners hone their two-digit by one-digit addition skills in this underwater race to sunken treasure!

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

First graders match the cards that equal the same value in this mental math matching game.

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

Kids hone their single-digit addition skills as they match equations with their missing factors.

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