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

Kids practice determining area and missing lengths and widths with these space-themed visual models.

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

Kids practice matching each addition equation to its missing factor in this interactive math game.

Become the greatest at finding the greatest common factor with this matching game!

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

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

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

Players race to determine which answer choice is not a factor of the given number.

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

Think on your feet and find the missing numbers in these subtraction equations.

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

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

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

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

Boost learners' grasp of number theory with this online math game all about factors and multiples!

Fill in these addition facts! This game challenges kids to match missing addends to each equation.

Learners will have a jumping good time multiplying fractions in this fifth-grade math game!

Students practice multiplying positive and negative integers in this rafting-themed math game!

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

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

Choo-choo! Kids use a number line to solve three-digit subtraction problems in this fun-filled train game.

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

Kids practice borrowing in this two-digit subtraction mountain-themed game.

Learners practice deciphering two-digit subtraction word problems with this second-grade math game!

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

Click through all the numbers in the correct order in this math exercise about multi-digit numbers.

Put 'em in coach! Kids round three-digit numbers to the nearest ten or hundred in this number line game.

Help kids get through a mysterious tunnel in this engaging multi-digit number comparison game!

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