Twenty percent of $80 is $16. To find out the answer to this problem, the number 80 is multiplied by .2, which is the decimal equivalent of 20 percent.
Continue ReadingTo calculate a percentage of a number, the percentage should first be converted to a decimal. To do that, the decimal is moved over two spaces to the left. For example, 55 percent is equal to .55. Then the decimal is multiplied by the number to find the answer. When trying to find 20 percent of any number, there is a shortcut method that doubles the original number and then moves the decimal point over one place. Therefore, 80 times 2 equals 160. Moving the decimal one place produces 16. Thus, 20 percent of an $80 check would be $16.
Learn more about ArithmeticA fraction is converted to a percentage by first expressing the fraction with a denominator of 100, then writing the numerator with a percent sign behind it. Some fractions can be easily converted if basic ratio equivalents are known.
Full Answer >The 401(k) retirement plan’s 20 percent contribution limit was established by Congress to prevent high-earners from using the plan as a tax shelter. Without the limit, a wealthy business owner, athlete, executive or actor could place millions of dollars into the retirement plan and build wealth without paying income taxes.
Full Answer >Fifth grade children learn to add and subtract large numbers by writing them in columns rather than horizontally. These multiplication problems can be written in columns: 944 times 84 equals 79,296, and 508 times 92, equals 46,736. These division problems can use a long-division format: 2812 divided by four equals 703, and 5916 divided by four equals 1479.
Full Answer >Carpenters use math for measuring and cutting, for determining the amount of material and manpower required for a job and for determining the amount to bid for a particular job. Carpenters must understand addition, subtraction, multiplication, division and fractions. According to MyCarpentry.com, formulas for calculating area and squaring using the Pythagorean theorem are also common mathematical techniques used by carpenters.
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