Math Mammoth Percent teaches students the concept of percent, percentage of a number, discounts, sales tax, percent of change, circle graphs, and percent of comparison. It is suitable for 6th-8th grade.
The concept of percent builds on a student's understanding of fractions and decimals. Specifically, students should already be very familiar with the idea of finding a fractional part of a whole.
One lesson concentrates a on tenth of a percent. Thus far, all the material has been with whole percents. From this lesson on, we will also use tenth of a percent (such as 13.4%). We compare ratios, fractions, and percent. Students study how to make a circle graph.
Last is percent of change dealing with decreases and increases in quantities (such as prices). We also study how to find the percent of change when the original and new amount are known.
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