BBC
Bbc Skillswise: Percent and Fractions: Ratio and Proportion
Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.
University of Cambridge
University of Cambridge: Nrich: The Magic Number and the Hepta Tree
Use your calculator to help you solve this challenge at this one page website. You can check your solution with only one click of the mouse.
Education Development Center
Tune in to Learning: What's a Fraction
Use this interactive lesson to learn about fractions. You will find equivalent fractions, compare fractions, and more. Immediate feedback is given to your answers. Links to related videos.
Calculator Soup
Calculator Soup: Percent to Decimal Calculator
Input the percent value that you would like to convert to a decimal. This calculator divides by 100 to convert percents to decimal values.