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.

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

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

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

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

Hone first grade addition strategies with this underwater math adventure!

Kids compare three-digit numbers at the swamp in this silly game.

The alligators are hungry for numbers, and kids use number skills to feed them.

Kids must count up tens and ones to identify the number in this place value game.

Kids find numbers with tens and ones in this place value game show!

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

Introduce first graders to the concept of subtracting multiples of 10 in this exciting math game.

Skip count by 5 and click through all the numbers in this engaging math game covering numbers to 75.

Which subtraction fact is correct? Review subtraction fact families in this exciting math game.

In this energizing math game, think about how different numbers can add up to 20.

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

Kids journey to Earth with aliens Zap and Kreb on a mission to gather data and create graphs in a math story that's out of this world!

Kids practice subtraction within 30 as they race down the mountain in this fast and fun math game!

Kids help Alfalfa the turtle and Old Harold navigate their way into the backyard in this sweet math story.

Children hone skip counting skills as they help the woodpecker peck the boards in numerical order.

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

Kids must move fast to find addition pairs that total a target sum within 20.

Kids practice comparing numbers from 50 to 99 with alligators at the swamp.