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SumSumThe answer to an addition problem

Suma

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DifferenceDifferenceThe answer to a subtraction problem

Diferencia

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FactorFactor A number that is multiplied by another number

Factor

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ProductProductThe answer to a multiplication problem

Producto

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QuotientQuotientThe answer to a division problem

Cociente

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DividendDividendA number being divided

Dividendo

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DivisorDivisor The number by which the dividend is being divided

Divisor

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Standard Standard FormForm The usual or

common way to write a numberForma

Estándar

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Expanded Expanded FormForm

A way of writing a number as the sum of the values of its digits

Forma Desarrollada

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PeriodPeriod Each group of three digits on a place-value chart

Perίodo

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Equivalent Equivalent DecimalsDecimals Decimals that

have the same valueDecimales

Equivalentes

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RoundRound To find the approximate value of a number

Redondear

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EstimateEstimate A number close to an exact value and indicates about how muchEstimación

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Parallel Parallel LinesLines

Lines that are the same distance apart and never intersect

Rectas Paralelas

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Perpendicular Perpendicular LinesLines Lines that cross

each other at right angles

Rectas Perpendiculares

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Intersecting Intersecting LinesLines Lines that meet

or cross at a common pointRectas

Secantes

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AngleAngleTwo rays with a common endpoint

Àngulo

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Acute Acute AngleAngle An angle with a

measure between 0° and 90°Àngulo

Agudo

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Obtuse Obtuse AngleAngle An angle that

measures between 90° and 180°Àngulo

Obtuso

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Right AngleRight AngleAn angle with a measure of 90°

Àngulo Recto

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PolygonPolygon A closed figure made up of line segments that do not cross each otherPolίgono

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TriangleTriangleA polygon with three sides and three angles

Triángulo

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Acute Acute TriangleTriangle A triangle with

all three angles less than 90°Triángulo

Acutángulo

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Obtuse Obtuse TriangleTriangle A triangle with

one obtuse angleTriángulo

Obtusángulo

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Right Right TriangleTriangle

A triangle with one right angle

Triángulo Rectángulo

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Equilateral Equilateral TriangleTriangle A triangle with

three congruent sidesTriángulo

Equilátero

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Isosceles Isosceles TriangleTriangle A triangle with

at least two sides of the same lengthTriángulo

Isósceles

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Scalene Scalene TriangleTriangle A triangle with

no congruent sidesTriángulo

Escaleno

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QuadrilateralQuadrilateralA polygon that has four sides and four angles

Cuadrilátero

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RectangleRectangle A quadrilateral with four right

angles and opposite sides that are equal and parallelRectángulo

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SquareSquare A rectangle with four congruent sides

Cuadrado

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ParallelogramParallelogramA quadrilateral with four sides in which each pair of opposite sides are parallel and congruent

Paralelogramo

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RhombusRhombusA parallelogram with four congruent sides

Rombo

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TrapezoidTrapezoid A quadrilateral with exactly one pair of parallel sides

Trapecio

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Three Three Dimensional Dimensional

FigureFigureA solid figure that has length, width, and heightFigura

Tridimensional

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FaceFaceThe flat part of a 3-D figure

Cara

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VertexVertexThe point where two rays meet in an angle / the point on a 3-D figure where three or more edges meet

Vértice

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EdgeEdge The line segment where two faces of a 3-D figure meet

Arista

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ConeCone A solid that has a circular base and one curved surface from the base to a vertexCono

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CylinderCylinderA solid with two parallel congruent circular bases and a curved surface that connects the bases

Cilindro

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Rectangular Rectangular PrismPrism A polyhedron

with six rectangular facesPrisma

Rectangular

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Triangular Triangular PrismPrism A prism that

has triangular basesPrisma

Triangular

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CubeCube A rectangular prism with six faces that are congruent squaresCubo

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AreaArea The number of square units needed to cover the surface of a closed figureÀrea

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PerimeterPerimeterThe distance around a polygon

Perίmetro

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Bar GraphBar GraphA graph that compares data by using bars to display the number of items in each group

Gráfica de Barras

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PictographPictograph A graph that compares data by using picture symbols

Pictograma

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Line GraphLine GraphA graph that uses points connected by line segments to show changes in data over time

Gráfica Lineal

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Line PlotLine PlotA graph that uses columns of X’s above a number line to show the number of times values in a set of data occur

Esquema Lineal

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MedianMedian The middle number in a set of data that has been written in order from least to greatestMediana

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ModeMode The number(s) that occurs most often in a set of data

Moda

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RangeRange Subtract the smallest from the largest number

Rango

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Ordered Ordered PairPair

A pair of numbers that is used to name a point on the coordinate grid

Par Ordenado

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OriginOrigin The point (0,0) on a coordinate grid where the vertical axis meets the horizontal axisOrigen

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TransformationTransformationA movement of a figure that does not change the size or shape of the figureTransformación

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RotationRotationRotating a figure about a point

Rotación

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ReflectionReflection A figure that is flipped over a line to create a mirror image of the figureReflexión

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TranslationTranslation Sliding a figure in a straight line horizontally, vertically, or diagonallyTraslación

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LineLineA set of points that form a straight path that goes on forever in opposite directions

Recta

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Line Line SegmentSegment A part of a line

that connects two pointsSegmento

de Recta

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RayRay A line that has one endpoint and goes on forever in only one directionRayo

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PlanePlane A flat surface that goes on forever in all directions

Plano

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ProbabilityProbabilityThe chance that an event will happen and can be described as a number from 0 to 1

Probabilidad

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FractionFraction A number that represents part of a whole or part of a set

Fracción

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NumeratorNumerator The top number in a fraction that tells the number of parts you haveNumerador

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DenominatorDenominatorThe bottom number in a fraction that represents the number of parts in the whole

Denominador

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Improper Improper FractionFraction

A fraction with a numerator that is greater than or equal to the denominator

Fracción Impropia

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Mixed Mixed NumberNumber A number that

has a whole number and a fractionNύmero

Mixto

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Equivalent Equivalent FractionsFractions Fractions that

have the same valueFracciones

Equivalentes

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Prime Prime NumberNumber

A whole number with exactly two factors, 1 and itself

Nύmero Primo

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Composite Composite NumberNumber A whole

number that has more than two factorsNύmero

Compuesto

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CapacityCapacityThe amount a container can hold

Capacidad

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VolumeVolume The amount of space that a 3-D figure contains

Volumen

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