Units 3 - 5
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| reciprocal | also called the multiplicative inverse; two numbers whose product is 1, n x 1/n = 1
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| absolute value | the distance the number is from zero on the number line written as lxl = x or l-xl = x, for example |-5| = 5.
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| difference | The result of subtracting one number from another.
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| sum | the total or whole amount; the result of addition
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| metric measurement | a decimal system of measurement based on 10; the most widely used system in the world.
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| rate | a comparison by division of two quantities that have different units, for example, births per year, cost per person, words per minute
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| ratio | a multiplicative comparison of two quantities expressed with
the same units.
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| scale factor | a ratio between two sets of measurements; the ratio of the length in a drawing (or model) to the length on the real thing
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| unit rate | a rate in which the second quantity is one unit. When the first quantity in a unit rate is an amount of money, the unit rate is sometimes called a unit price or unit cost.
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| customary measurement | also be called US Standard units, US Standard system,
Imperial or English system or just US units, such as inches, feet, yards, ounces, pounds, cups, etc.
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| minuend | The first number in a subtraction. The number from which another number (the Subtrahend) is to be subtracted.
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| subtrahend | The number that is to be subtracted. The second number in a subtraction.
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| addend | Any of the numbers that are added together.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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