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

Children hone their multi-digit addition skills in this fun race to the finish line!

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

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

Math learners hone their multi-digit addition skills in this interactive game show!

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

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.

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

Players hone their two-digit addition skills as they match equations with their missing addends!

Help Roly get to the party on the other side of the river by solving addition word problems!

Give learners plenty of practice solving addition word problems with this math game!

Children use their knowledge of addition to snap pictures of unique dinosaurs in this fun math game!

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

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

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

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

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!

As students practice adding one-digit numbers, they will move their character to the finish line in Ski Racer: Addition to 10.

Children practice addition within 10 in this water rafting adventure!

Play this snow-themed game, in which students practice using patterns to add within 10.

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.