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Math Terms and Formulas > Math Terminology 1 > Flashcards

Math Terminology 1 Flashcards

Basic Math Terminology

1
Q

Perimeter

A

The distance around a figure.

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2
Q

Circumference

A

The distance around a circle.

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3
Q

Acute angle

A

An angle that measures less than 90 degrees.

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4
Q

Angle

A

A figure formed by 2 rays that have the same endpoint.

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5
Q

Capacity

A

A measure of how much liquid a container can hold.

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6
Q

Array

A

An arrangement of objects or pictures in equal columns and rows.

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7
Q

Concentric circles

A

Circles that have the same center but different diameters.

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8
Q

Congruent

A

Same size, same shape.

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9
Q

Consecutive

A

Following in order without interruption.

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10
Q

Denominator

A

The number below the bar in a fraction. The denominator names the total number of equal parts.

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11
Q

Diameter

A

The distance across the circle going through the middle.

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12
Q

Difference

A

Answer to a subtraction problem.

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13
Q

Dividend

A

The number being divided in division.

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14
Q

Divisor

A

The number that divides the dividend in division.

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15
Q

Equivalent fractions

A

Different fractions that name the same number.

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16
Q

Expanded form

A

A number written to show the value of each digit.

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17
Q

Factor

A

A number times another number.

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18
Q

Fraction

A

A number that names a part of a whole, a part of a collection, or a part of a region.

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19
Q

Hexagon

A

A six sided figure.

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20
Q

Horizontal

A

Side to side.

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21
Q

Hundredth

A

On of the 100 equal parts of a whole.

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22
Q

Intersecting lines

A

Lines that meet or cross at a common point.

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23
Q

Interval

A

The space or distance between two points on a scale or number line.

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24
Q

Line

A

A straight path that extends infinitely in opposite directions.

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25
Q

Line of symmetry

A

A line that divides a figure into two equal parts that match when folded on the line.

26
Q

Line segment

A

Part of a line defined by two endpoints along the line.

27
Q

Mass

A

The amount of matter in an object.

28
Q

Mixed number

A

A number containing a whole number part and a fraction part.

29
Q

Numerator

A

The top number of the fraction. The numerator names the number of equal parts.

30
Q

Obtuse angle

A

An angle that measures more than 90 degrees and less that 180 degrees.

31
Q

Octagon

A

An eight sided figure.

32
Q

Parallel

A

Lines that stay the same distance apart and never meet.

33
Q

Parallelogram

A

A quadrilateral that has two pairs of parallel lines.

34
Q

Pentagon

A

A five sided figure.

35
Q

Period

A

Each group of three digits in a number separated by a comma.

36
Q

Perpendicular

A

Lines that intersect at 90 degrees.

37
Q

Polygon

A

A simple closed two-dimensional figure made up of three or more line segments.

38
Q

Product

A

Answer to a multiplication problem.

39
Q

Proper fraction

A

A fraction that names a number between 0 and 1. The numerator is less than the denominator.

40
Q

Quadrilateral

A

A polygon with four sides and four vertices.

41
Q

Quotient

A

Answer to a division problem.

42
Q

Radius

A

The distance from the center to the edge of a circle.

43
Q

Ray

A

Are parts of a line that extend in one direction from one endpoint to infinity.

44
Q

Reflection

A

Flipping a figure

45
Q

Rhombus

A

A parallelogram with all four sides the same length.

46
Q

Right angle

A

An angle that measures 90 degrees.

47
Q

Rotation

A

Spinning a figure.

48
Q

Standard form

A

The simplest way to show a number using digits.

49
Q

Sum

A

Answer to an additional problem.

50
Q

Tenth

A

One of the 10 equal parts of a whole or collection.

51
Q

Transformation

A

Way of changing the position of a figure including rotation, reflection and translation.

52
Q

Translation

A

Sliding a figure

53
Q

Trapezoid

A

A quadrillateral with exactly on pair of parallel sides.

54
Q

Vertex

A

The corner of an angle.

55
Q

Vertices

A

More than one vertex.

56
Q

Vertical

A

Up and down.

57
Q

Volume

A

The number of cubic units that fit inside a three-dimensional figure.

58
Q

Weight

A

A measure of how much gravity pulls on an object.

59
Q

Area

A

The number of squares to cover the surfact of a figure.

60
Q

Equivalent

A

Equal.

Math Terms and Formulas (2 decks)

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