Students are introduced to mixed expressions and complex fractions. They work through several problems with the instructor and then complete a worksheet.

Fourth graders use critical thinking skills in order to plan a meal for a family of four. They integrate the knowledge of the Food Pyramid in order to make the meal acceptable. Students use a budget and then create a list for shopping...

Students pretend they are about to buy their first new car. They must do all the calculations necessary to estimate the cost of purchasing the car. They see that the math they learn in school really does have real-life applications.

Third graders create a box big enough to hold a million dollars. This is a project fun to do near the winter holidays with inexpensive gifts included in the boxes. This hands-on lesson very effectively demonstrates the concept of volume.

Students compute minimum velocity, using square roots.

Students review basic operations and use them to solve word problems. In this word problems lesson, students review basic mathematical operations such as addition, subtraction, multiplication, and division. Students then complete an...

Third graders create addition and subtraction word problems for a partner to solve using marbles. They explain whether the problem is an addition, subtraction, "take away", "have and need", compare or "what is the rest" type problem.

Middle schoolers explore number sense by completing math function problems in class. In this integers lesson, students define integers and practice plotting them on a number line. Middle schoolers utilize math functions such as addition...

Students access the Internet to find information on current hurricanes. They get locations, speeds, and air pressures and then plot the location of the hurricane on a hurricane-tracking map. They also access the FEMA website to solve...

Sixth graders practice using negative numbers by completing number equations.  For this math problem solving lesson, 6th graders discuss the different ways negative numbers can be used in a math problem and practice completing...

Sixth graders examine currency by completing monetary equations.  In this economics instructional activity, 6th graders participate in a numbers experiment where they roll a die and earn money based on their roll.  Students...

Fourth graders using the idea of "how many more squirts" fill a container to develop multiplicative thinking. They also investigate the idea of conservation of volume when working with oddly shaped containers. They attempt to use...

Students set up a classroom currency exchange and explore the idea of bartering to get what they want. They create a monetary unit that is based on fractions and multiples of a standard unit, and compare this system to the U.S. monetary...

Students combine imagination, block manipulation, and computer applets to investigate fractions.

In this tutorial, students learn how to add and subtract decimals.

This site provides students practice with the concept of adding and subtracting decimals. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.

Explore how to add and subtract decimals with this interactive lesson. Then test your knowledge with a quick quiz.

Sixth graders use estimates and work on strategies for adding and subtracting decimals.

Practice solving word problems by adding or subtracting decimal numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice subtracting decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

The mathematics notes investigate how to add and subtract decimals. Examples and practice problems with solutions are included.

Find a quick, concise explanation of how to add and subtract decimals. Step by step examples are included to help you understand how to line up the decimals points and then find the sum or difference.

If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.

This Jeopardy game challenges students to add, subtract, and multiply decimals. Play with up to 10 teams.