Students learn to use the calculator to collect a set of data in order to identify patterns that illustrate important rational number concepts: the relationship between rational numbers and division, and equivalent fraction and decimal...

This Millionaire Game challenges students to convert fractions and decimals to percents. Students will use decimal notation with denominators of 10 and 100 and convert rational numbers to decimals using long division.

In this task, 6th graders are asked to compare the buying power of $20 in 1987 and 2012 with respect to the cost of movie tickets. Aligns with 6.NS.B.3.

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

In this exercise, students practice multiplying decimals 3. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

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

This site contains many worksheets dealing with decimals and operation with decimals. Each worksheet has many variations. You can see them on the screen and print them with or without the answers.

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

Dealing with very small or very large numbers can be tedious. Scientific notation helps simplify the process and this tutorial teaches students scientific notation with multiple examples, practice problems, calculator tips, and two...