Forty terms, survey-kit plain.
| variable | a letter that stands for a number that can change |
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| constant | a number on its own whose value does not change |
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| coefficient | the number multiplied by a variable |
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| expression | numbers, variables, and operations with no equals sign |
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| equation | a statement that two expressions are equal |
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| integer | a positive or negative whole number, or zero |
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| absolute value | the distance of a number from zero |
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| opposite | the number the same distance from zero on the other side |
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| reciprocal | the fraction flipped so the product is one |
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| numerator | the top number of a fraction |
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| denominator | the bottom number of a fraction |
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| greatest common factor | the largest number that divides two numbers evenly |
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| least common multiple | the smallest number that two counts both reach |
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| prime number | a whole number with exactly two factors, one and itself |
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| composite number | a whole number with more than two factors |
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| exponent | the small raised number counting repeated multiplication |
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| base | the number being repeatedly multiplied under an exponent |
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| power | a base together with its exponent |
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| square root | the number that multiplied by itself gives the value |
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| perfect square | a whole number that is some whole number times itself |
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| order of operations | the agreed sequence for evaluating an expression |
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| distributive property | multiplying a sum by multiplying each addend |
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| commutative property | changing the order without changing the result |
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| associative property | changing the grouping without changing the result |
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| like terms | terms whose variable parts are exactly the same |
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| inequality | a statement comparing values with greater or less than |
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| ratio | a comparison of two quantities by division |
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| rate | a ratio comparing quantities with different units |
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| unit rate | a rate written for exactly one of the second unit |
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| proportion | a statement that two ratios are equal |
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| percent | a ratio out of one hundred |
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| origin | the point where the axes cross |
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| x-axis | the horizontal number line on the plane |
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| y-axis | the vertical number line on the plane |
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| ordered pair | two coordinates naming a point on the plane |
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| quadrant | one of the four regions the axes create |
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| mean | the sum of the values divided by the count |
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| median | the middle value when the data are in order |
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| mode | the value that appears most often |
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| perimeter | the distance around the boundary of a figure |
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