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

Kids must quickly add or subtract two-digit numbers to save the day.

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

Children use their addition knowledge to complete equations in a race to reach the sunken treasure.

Which number is missing? Click on the number that fits each addition expression and win the race.

Dive for treasure and missing factors in this online game featuring addition equations.

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

Mama mia! Kids must use subtraction skills to craft perfect pizzas in this game.

Children must choose the correct addition expressions as they race to the sunken treasure chest.

Children complete a race by choosing the correct addition expressions for the given fact families.

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

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

Help your child hone their three-digit subtraction skills with this digital learning adventure!

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

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

Kids make three-digit numbers with hundreds, tens, and ones in this game.

Kids practice adding small numbers in this silly addition game.

Players race down the roaring rapids while practicing subtraction patterns of one less.

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

Pass the peas! Kids identify two-digit numbers based on tens and ones.

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

Line your rod, and get ready to practice solving two-digit subtraction word problems!

In this matching game, first graders look at subtraction facts that are missing factors.

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

Let's have a ski race while practicing addition to 20 in this fast-paced learning adventure!

Help kids build place value understanding by fixing this machine with tens and ones.

Kids compare subtraction equations and numbers to feed the gators in this game.

Kids must help Cuz-Cuz and Birdee read bar graphs in this colorful data game.

Kids learn to master telling time with analog clocks in this matching game.

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