Unit
Decimals and Percents
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
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MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
We can solve percents using the proportion "is/of = percent /100" because a percent is a ratio out of 100. Here, we practice problems of the type "5 is 80% of what number," where the OF is the unknown. Put a variable in the bottom of the first fraction and fill in the other values. Solve for the variable by cross multiplying.
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