Stack is updated continually and will include all of your math terms over time.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Absolute Value | The distance a number is from zero on a number line.
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| Acute Angle | Less than 90 degrees
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| Acute Triangle | A triangle with two or more acute angles.
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| Coefficient | The numerical factor of a term with a variable. (do not include the variable when saying the coefficient)
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| Complex Fraction | Both numerator and denominator are fractions. (fraction over a fraction)
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| Constant | A term WITHOUT a variable
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| Cross Products | Multiplying the numerator of ratio one and the denominator of ratio two. Then Multiplying the denominator of ratio one by the numerator of ratio two.
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| Denominator | The bottom number of a fraction. (The Divisor)
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| Discount | The amount by which a regularly priced item is reduced.
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| Equilateral Triangle | A triangle with ALL sides congruent.
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| Equivalent Expressions | Have the same value BUT are presented in a different form using the properties.
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| Equivalent Ratios | Two or more ratios with the same value.
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| Fraction | A part of a whole.
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| Integer | Whole numbers and their opposites.
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| Interest | Money paid or earned on money borrowed or invested.
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| Isosceles Triangle | A triangle with 2 sides congruent.
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| Like Terms | Terms that have the same variables and/or are raised to the same powers.
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| Markdown | The amount deducted from a cost price to determine a new selling price.
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| Markup | An amount added to the cost price to determine a selling price.
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| Numerator | The top number of a fraction. (The Dividend)
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| Obtuse Angle | Between 90 and 180 degrees
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| Percent of Change | A ratio comparing the amount of change to the original amount.
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| Principal | Amount of money borrowed or invested.
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| Proportion | Two equivalent ratios
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| Rate | Comparison of two quantities with different units.
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| Ratio | Comparison of two quantities by division.
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| Rational Number | Any number that can be expressed as a ratio of two integers.
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| Right Angle | Exactly 90 degrees
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| Right Triangle | A triangle with one right angle.
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| Sales Tax | An ADDITIONAL amount of money charged on items people buy.
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| Scale | A ratio that compares the measurements used in a scale drawing with the actual measurements.
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| Scale Drawing/Model | Shows an object with its measurements in proportion to the actual measurement of the object
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| Scale Factor | A constant of proportionality. (A scale written as a ratio in simplest form)
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| Scalene Triangle | A triangle with NO congruent sides.
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| Simple Interest Formula | I = prt
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| Terms | Parts of a math sentence/problem that are separated by addition and subtraction symbols.
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| Tip/Gratuity | A small sum of money given to people for providing a service.
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| Unit Rate | A rate simplified to a denominator of one.
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| Variable | Placeholder, usually a letter that represents an unknown number.
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| Whole Numbers | Zero and the counting numbers.
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| Obtuse Triangle | A triangle with one obtuse angle.
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| Algebra | The branch of math that involves both numbers and letters.
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| Radius | Half the distance across a circle from the center to any outside point.
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| Diameter | The full distance across a circle and must go through the center point.
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| Complementary Angles | Two angles whose sum is 90 degrees.
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| Supplementary Angles | Two angles whose sum is 180 degrees.
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| Linear Pairs | Two angles that are adjacent and supplementary.
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| Adjacent Angles | Two angles that share a common ray and common vertex.
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| Vertical Angles | Two angles that are opposite and formed by intersecting lines. Must be congruent to be vertical.
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