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.

Counting and adding get served up in this game that challenges kids to add toppings to a giant pizza.

Kids practice adding small numbers in this silly addition game.

Learning number shapes gets a fun makeover in this matching card game.

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

Kids match common 2D shapes with their 3D partners in this interactive memory game.

Kids must find the item that doesn't belong in this categorizing quiz.

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

Kids hover among the clouds and try to find all the right numbers from 11 to 20.

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

Kids sort items based on the materials they're made with: brick, straw or sticks.

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

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

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.

Children practice identifying numbers 0-10 in this learning adventure that takes place under the sea!

Kids practice concrete counting and simple addition at the pizza parlor.

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.

Kids practice mentally adding sums up to 30 in this fast-paced addition race.

Kids practice identifying analog and digital clocks with specific times.

Ski Racer: Compare Numbers 1-10 is a fun and challenging way to practice comparing and evaluating numbers.