GED® Basic Math: Percents Mastery
A deep Basic Math course focused only on percents. Students learn percent meaning, percent-decimal-fraction conversion, percent of a number, discounts, tax, tips, percent increase and decrease, reverse percent, and GED®-style case studies from shopping, paychecks, test scores, budgeting, and data.
📚 Course Curriculum
Percent means per hundred. The symbol \(\%\) is a shortcut for "out of 100.". [[figure:percent_grid A 100-grid makes percent literal: 37 shaded squares out of …
Open trial session →Percents, decimals, and fractions are three names for the same amount. [[figure:percent_conversion The same value can be written as percent, fraction, simplified fraction, or decimal.]]. …
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The core percent equation is:. [[figure:percent_equation_triangle Cover the unknown: part = percent times whole.]]. Example: Find 30% of 150. So 30% of 150 is 45. …
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Sometimes the question gives the part and whole, and asks for the percent. Use:. Example: 18 is what percent of 72?. Another example: A student …
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A discount lowers the original price. If an item is 25% off, the store removes 25% and you pay the remaining 75%. [[figure:percent_discount_bar A 25% …
Open trial session →Tax, tips, fees, and commission usually increase an amount. For sales tax:. If tax is 6%, then the total is 106% of the price:. Example: …
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Percent change compares the change to the original amount. [[figure:percent_change_arrow The change is compared to the old value, not the new value.]]. Increase example: A …
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Reverse percent problems give the final amount and ask for the original. These feel harder because the original is hidden. Use this idea:. If a …
Open trial session →Percent questions become easier when you identify the base: what is the percent being taken of?. Case study 1 - shopping with discount and tax. …
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Percent mastery is not just knowing formulas. It is knowing which formula fits the story. Use this decision map:. Find part: "What is 30% of …
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Course Syllabus
Course Outcomes
📝 Practice Questions
33 interactive questions with instant feedback and explanations.
Enroll for free to unlock the full practice bank after the trial sessions.