Third Grade Math


Number Sense 

Interactive 100 Chart

100 Square - investigate patterns made by multiples of numbers in a 100 square. If that's too easy, try the n-square investigation


An interactive doodle that plays with the concept that multiplication is repeated addition and division is really repeated subtraction.

Number Cruncher

Use the arrow keys to guide the number cruncher around the screen, collecting multiples as you move.

Place Value 

Place Value

Identify place value of digits and round numbers up to thousands.


How many tries do you need to guess a number between 1 and 999?

Fact Practice 

Batter Up!

Practice addition and multiplication facts.

Multiplication Baseball

Fact practice for one or two players.

Color by Numbers - Fact Practice

Match number fact equations with answers.


Work through a set of flashcards.

Farm Stand

Multi-step fact practice

Spacey Math

Practice your number facts!


How many computation problems can you solve in 60 seconds?

Soccer Shootout

Whole number operations at a variety of levels.

Multiplication Mystery

Place the products on the multiplication table to uncover an image. Notice the turn around facts!

An Adventure in Number Sense - Too Many Facts?

Does learning the multiplication table looks like a big and boring job? You've come to the right place! We will look at the table closely, and you will see that there are only about 13 facts that you may want to memorize. Let's get started!


You can practice the multiplication tables or play a game to qualify for a mission to space!

Product Game

This is a two player game that integrates multiplication fact practice and great strategic thinking!


Nets for Solid Shapes

Click on Math, then Math Advantage,then Grade 3 and then scroll down to find Dr. Gee's 3-D Lab. Figure out if Dr. Gee's net matches her 3-D Solid.

Ladybug Rectangles

Can you draw a rectangle with a perimeter of 16? In "Making Rectangles", students plan the steps necessary for the ladybug to draw rectangles of different sizes. The ladybug example presents a rich computer environment in which students can use their knowledge of number, measurement, and geometry to solve interesting problems. Planning and visualizing, estimating and measuring, and testing and revising are components of the ladybug activities.


Tangram Puzzles allow students to choose a picture and use all seven pieces to fill in the outline. In Tangram Challenges, students can use tangram pieces to form given polygons.

Shape Catcher

Use the mouse to click on the shapes and move them to the right container, but avoid being caught by the other robots. Watch out! The robots are quick!


Calculating Crew

Practice 2 digit by 1 digit multiplication using the standard algorithm.


Making Change

Figure out how much change you would get back when you pay for a bill.

Making Change with the Fewest Number of Coins

Make change using the fewest number of coins and bills.

Addition with Money

Find the value of two collections of money.