Learn about ratios, proportions, percentages, coordinates, and change. Choose a tutorial now, with matching interactive practice activities added over time.
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Learn how to calculate percent of change by comparing the original value and the new value. This tutorial walks through percent increase and percent decrease using real-life examples.
This tutorial shows how to calculate the whole amount when given the percent and the part. You’ll learn the formula and how to apply it step by step with visual support.
Learn how to calculate the total amount when given a part and a fraction of the whole. This method is essential in proportional reasoning and everyday problem solving.
Develop confidence with equivalent fractions and proportional reasoning through interactive practice.
Reduce proper and improper fractions completely using common factors in three progressive modes.