Khan Academy
Khan Academy: Discount, Tax, and Tip Word Problems
Practice solving word problems involving price discounts, taxes, and tip calculations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
McGraw Hill
Glencoe: Self Check Quizzes 3 Slope
Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of finding the slope of a line. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click...
McGraw Hill
Glencoe: Self Check Quizzes 1 Circumference
Use Glencoe's randomly generated self-checking quiz to test your knowledge of how to find the circumference of a circle. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click...
National Council of Teachers of Mathematics
Nctm: Figure This: Does Drinking Soda Affect Your Health?
Try this "Real world," challenge taken directly from the today's health journals. Use your problem solving, data analysis, and number sense skills to figure out if soda intake among teenage girls is related to incidences of broken bones....
AAA Math
Aaa Math: Determining Percentage
This lesson explains how to determine the percent of one number compared to another. Includes practice and games to practice this skill.
Calculator Soup
Calculator Soup: Percentage Calculator
Find a percentage or work out the percentage given numbers and percent values. Use percent formulas to figure out percentages and unknowns in equations. Add or subtract a percentage from a number or solve the equations.
McGraw Hill
Glencoe: Self Check Quizzes 2 Lines and Slope
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of lines and slope. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...
McGraw Hill
Glencoe: Self Check Quizzes 2 Surface Area of Cylinders
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of finding the surface area of a cylinder. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the...
Mangahigh
Mangahigh: Number: Find a Fraction of an Amount Simple Examples
Convert between fractions, percents, and decimals.
McGraw Hill
Glencoe: Self Check Quizzes 2 Volume of Rectangular Prisms
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of how to find the volume of rectangular prisms. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom...
McGraw Hill
Glencoe: Self Check Quizzes 3: Surface Area of Prisms and Cylinders
Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of how to find the surface area of prisms and cylinders. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the...
Math Is Fun
Math Is Fun: Percentage Calculator
Use this percentage calculator to "calculate a percent of a value" or "find the percent change between two values." Provided answers include steps for carrying out the calculations yourself.
PBS
Pbs: The Lowdown: What You Need to Know About Immigration Reform
Interpret graphs showing changes over time in the percentage of foreign-born US residents and in annual deportations in this interactive from KQED. In the accompanying classroom activity, students use the interactive and look at how...
Government of Alberta
Learn Alberta: Exploring Combined Percentages
Combined percentages are introduced in this video through analyzing plays in football. Be sure to follow the interactive activity link for students to explore combined percentages representing the number of completed passes for 2 games....
BBC
Bbc: Percentages
You can pick up some valuable percentage pointers on how to work with them. When you finish working your way through the pages, you can take an on-line "Test Bite" and check your understanding.
Science Education Resource Center at Carleton College
Serc: Mineral Density: Teaching Accuracy, Slope, and Percent Error
Learners explore the meaning of density and use their math skills to graph mass/volume data, write an equation for a line, and interpret the slope of the line. Students also find the density of two unknown mineral samples and use those...
McGraw Hill
Glencoe: Self Check Quizzes 1 Perimeter
Use Glencoe's randomly generated self-checking quiz to test your knowledge of how to find the perimeter of various shapes. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page...
AAA Math
Aaa Math: Adding Nickels and Pennies
Use this interactive online game to find the sums of different combinations of pennies and nickels. The game keeps a running total of correct and incorrect answers, as well as the percent of correct answers.
Khan Academy
Khan Academy: Comparing Rates
Example problem: Three different stores are offering a deal on pencils. Which store has the lowest price per pencil? Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
AAA Math
Aaa Math: Adding Three Numbers
Find an explanation on how to add three numbers together using pencil and paper. There is also an online game that will keep running totals of your correct and incorrect answers. The lesson also gives you a percent score of the correct...
McGraw Hill
Glencoe: Self Check Quizzes 2 Mean, Median and Mode
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of finding the mean, median and mode. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page...
McGraw Hill
Glencoe: Self Check Quizzes 1 Greatest Common Factor
Use Glencoe's randomly generated self-checking quiz to test your knowledge of how to find the greatest common factor. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click...
McGraw Hill
Glencoe: Self Check Quizzes 1 Coordinate Plane
Use Glencoe's randomly generated self-checking quiz to test your knowledge of locating points on the coordinate plane. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click...