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MATH VOCABULARY Intermediate. Acute Angle An angle that measures less than a right angle (90°).angleright angle.

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Presentation on theme: "MATH VOCABULARY Intermediate. Acute Angle An angle that measures less than a right angle (90°).angleright angle."— Presentation transcript:

1 MATH VOCABULARY Intermediate

2 Acute Angle An angle that measures less than a right angle (90°).angleright angle

3 addend Any of the numbers that are added Example: 2 + 3 = 5 The addends are 2 and 3.

4 A.M. The time between midnight and noon

5 Angle A figure formed by two rays that meet at a common endpointrays

6 Area The number of square units needed to cover a given surface.square

7 Array An arrangement that shows objects in rows and columns

8 Bar Graph A way to show information that uses bars to stand for data

9 Benchmark Numbers like 10, 25, 50, or 100 that are used to help make estimatesestimates

10 Calendar A table that shows the days, weeks, and months of a year in order

11 Capacity The amount a container can hold when filled

12 Cell Any single box in a table

13 Circle Graph A graph in the shape of a circle that shows data as a whole made up of different partscircle data

14 Closed Figures A shape that begins and ends at the same point point

15 Cone A solid, pointed figure that has a flat, round basesolid

16 Congruent Figures that have the same size and shape These triangles are congruent.

17 Cube A solid figure with six congruent square facessolid figurecongruentsquare faces

18 Cumulative Frequency A column in a table that keeps a running total in a frequency tablefrequency table

19 Cup A customary unit used to measure capacitycustomarycapacity 2 cups = 1 pint

20 Cylinder A solid figure that is shaped like a cansolid figure

21 Decimal A number that uses place value and a decimal point to show values less than one, such as tenths and hundredthsplace value decimal pointtenthshundredths 3.47

22 Decimal point A period used in decimal numbers to separate the whole number part from the decimal partdecimal

23 Degree A unit of measure used to measure parts of a circle. There are 360° in a circle.

24 Degree Celsius A standard unit for measuring temperature in the metric system metric system

25 Degrees Fahrenheit A standard unit for measuring temperature in the customary system customary system

26 Denominator The number below the bar in a fraction. It tells the total number of equal parts.fraction

27 Diameter A line segment that passes through the center of a circle and has its endpoints on the circleline segment

28 Difference The answer in a subtraction problem 8 - 5 = 3 3 is the difference.

29 Dividend The number that is being divided in a division problem division 35 ÷ 5 = 7 The dividend is 35.

30 Divisor The number that divides the dividenddividesdividend 18 ÷ 3 = 6 The divisor is 3.

31 Double bar graph A graph using bars to compare similar kinds of databars

32 Elapsed time The time that passes from the start of an activity to the end of that activity The elapsed time is one hour.

33 Equally likely When the outcomes of an experiment have the same chance of happeningexperiment You are equally likely to roll 1, 2, 3, 4, 5, or 6.

34 Equilateral triangle A triangle with all sides congruenttrianglecongruent

35 Equivalent decimals Two or more decimals that name the same amountdecimals 0.3 and 0.30 name the same amount.

36 Equivalent fractions Two or more fractions that name the same amountfractions

37 Expanded form A way to write numbers by showing the value of each digitdigit 635 = 600 + 30 + 5 1,479 = 1,000 + 400 + 70 + 9

38 Expression A part of a number sentence that combines numbers and operation signs (12 – 4) – 3

39 Fact family A set of related addition and subtraction or multiplication and division number sentencesadditionsubtraction multiplicationdivision 2 + 4 = 6 6 - 4 = 2 4 + 2 = 6 6 - 2 = 4 or 3 X 6 = 18 18 ÷ 6 = 3 6 X 3 = 18 18 ÷ 3 = 6

40 Factor A number that is multiplied by another number to find a product.multipliedproduct 4 4 X 7 = 28 X 7 28 The factors are 4 and 7.

41 Factor tree A diagram that shows the prime factors of a composite numberprimefactors

42 Fraction A number that names part of a whole or part of a group

43 Frequency table A table that organizes the total for each category or group

44 Gallon A customary unit used to measure capacitycustomarycapacity 4 quarts = 1 gallon

45 Grouping property of addition The property which states that the way addends are grouped does not change the sumaddendssum (5 + 9) + 3 = 5 + (9 + 3) 14 + 3 = 5 + 12 17 = 17

46 Grouping property of multiplication The property which states that the way factors are grouped does not change the product factors product (2 X 3) X 4 = 2 X (3 X 4) 6 X 4 = 2 X 12 24 = 24

47 Hexagon A polygon with 6 sides and 6 anglespolygonangles

48 Horizontal The direction from left to right

49 Hundredth One of one hundred equal parts

50 Impossible Something that will never happen Example: A dinosaur will walk into your classroom today.

51 Intersecting lines Two or more lines that cross at exactly one pointlines point The lines intersect at point B

52 Interval The distance between the numbers on the scale of a graph. scale

53 Inverse operations Opposite operations that undo each other; Addition and subtraction are inverse operations, and so are multiplication and division. Additionsubtractionmultiplication division 5 + 4 = 9, so 9 – 4 = 5 3 X 4 = 12, so 12 ÷ 4 = 3

54 Isosceles triangle A triangle with two congruent sidestrianglecongruent

55 Line A straight path extending in both directions with no endpoints

56 Line graph A graph that uses line segments to show how data change over a period of timeline segmentsdata

57 Line plot A diagram that shows the frequency of data as they are collectedfrequencydata

58 Line segment Part of a line, with two endpoints

59 Line symmetry A figure has line symmetry when it can be folded about a line so that its two parts are identical.

60 Linear units An inch is about the length of your thumb from the first knuckle to the tip.inch A foot is about the height of a cat. foot A yard is about the length of a baseball bat.yard A mile is about the distance you can walk in 20 minutes. mile

61 Mean Step 1 Use unit cubes. Make 6 stacks of cubes to model the number of tickets sold each day. Step 2 Arrange the stacks in order from the shortest to the tallest. Step 3 To find the mean, move the cubes so the 6 stacks are equal in height. The number of cubes in each stack is the mean.

62 median The middle number in an ordered series of numbers The median of 1, 3, 4, 6, and 7 is 4.

63 mode The number that occurs most often in a list of datadata The mode of 1, 3, 4, 4, and 6 is 4.

64 Multiple

65 Negative numbers Numbers less than zero

66 Net A two-dimensional pattern of a three- dimensional solidtwo-dimensionalthree- dimensional

67 Nominal A number that names things

68 Numeration system A way to count and name numbers

69 Numerator The number above the bar in a fraction. It tells how many of the equal parts of the whole or group are being considered.fraction

70 Obtuse angle An angle whose measure is greater than 90° and less than 180°angle

71 octagon A polygon with 8 sides and 8 anglespolygonangles

72 One-dimensional A measure in only one direction, such as length

73 Open figure A figure that does not begin and end at the same point

74 Opposites 1 and –1 3 and –3 7 and –7

75 Order property of multiplication The property which states that when the order of the two factors is changed, the product is the samefactorsproduct 4 X 5 = 5 X 4 20 = 20

76 Ordered Pair A pair of numbers used to locate a point on a grid. point (1,2) represents 1 space to the right of zero and 2 spaces up.

77 Ordinal A number that tells position or order Jon won first place. Jean is 4th in line.

78 Parallel lines LinesLines that never cross and are always the same distance apart

79 Parallelogram A quadrilateral with 2 pairs of parallel sides, 2 pairs of equal angles, and 2 pairs of equal sidesquadrilateralparallelangles

80 Pentagon A polygon with 5 sides and 5 anglespolygonangles

81 Perimeter The distance around a figure 2 cm + 3 cm + 3 cm = 8 cm The perimeter of this figure is 8 centimeters.

82 Period Each group of three digits in a numberdigits

83 Perpendicular lines Two lines that intersect to form four right angleslinesintersectright angles

84 Pictograph A graph that uses pictures to show and compare information

85 Pint A customary unit used to measure capacitycustomarycapacity 2 cups = 1 pint

86 Place value The system in which the position of a digit in a number determines its value; see decimal number system decimal number system

87 Plane A flat surface that extends without end in all directions Planes are named by three points in the plane.points

88 Plane Figure A figure that lies in one planeplane

89 P.M. The time between noon and midnight

90 Point symmetry When a figure can be turned about a central point and still look the same in at least two positionspoint

91 Probability The chance that a given event will occurevent Probability of red = 1 4

92 Quart A customary unit used to measure capacitycustomarycapacity 2 pints = 1 quart

93 Quotient The answer in a division problemdivision 35 ÷ 5 = 7 The quotient is 7.

94 Radius A line segment with one endpoint at the center of a circle and the other endpoint on the circleline segment

95 Range The difference between the greatest and the least numbers in a set of numbersdifference range: 6 – 0 = 6

96 Ray A part of a line that begins at one endpoint and extends forever in only one directionline

97 Rectangle A polygon with 4 sides and 4 right anglespolygonright angles

98 Rectangular prism A solid figure in which all six faces are rectanglessolid figurefaces rectangles

99 Reflection (flip) The result of a figure flipped over a line

100 Remainder The amount left over when you find a quotient quotient

101 Rhombus A parallelogram whose four sides are congruent and whose opposite angles are congruentparallelogram congruentangles

102 Right angle An angle that forms a square corner and measures 90°angle

103 Rotation (turn) The action of turning a figure around a point or a vertexpointvertex

104 scale A series of numbers placed at fixed distances on a graph to help label the graph

105 Scalene triangle A triangle in which each side has a different lengthtriangle

106 Schedule A table that lists activities and the times they happen FLIGHTS FROM MIAMI TO NEW YORK CITY Each flight lasts about 2 hours and 45 minutes. AirlineDeparture Time Airline A9:10 A.M. Airline B10:15 A.M. Airline C12:50 P.M. Airline D 1:20 P.M.

107 Similar figures Figures that have the same shape but may have different sizes

108 Simplest form When a fraction can be modeled with the largest fraction bar possiblefraction

109 Solid figures sphere cube cylinder rectangular prism cone square pyramid

110 square A polygon with 4 equal sides and 4 right anglespolygonright angles

111 Square pyramid A solid figure with a base that is a square and four faces that are trianglessolid figuresquarefacestriangles

112 Tally table A way to organize data that uses tally marks to show how often something happensdatatally marks

113 tangram A puzzle consisting of seven polygon- shaped pieces that can be rearranged to make various figures or shapespolygon

114 tenth One of ten equal parts

115 tessellation A repeating pattern of closed figures that covers a surface with no gaps and no overlapsclosed figures

116 Three-dimensional A measure in three directions, such as length, width, and height

117 transformation The movement of a figure, either a translation, rotation, or reflection translationrotationreflection

118 Translation (slide) The action of sliding a figure in any direction

119 trapezoid A quadrilateral with only one pair of parallel sidesquadrilateralparallel

120 Tree diagram An organized list that shows all possible outcomes of an eventevent So, there are 6 possible outcomes.

121 triangle A polygon with 3 sides and 3 anglespolygonangles

122 24-hour clock A clock that does not use A.M. or P.M.A.M.P.M.

123 Two-dimensional A measure in two directions, such as length and width

124 Venn diagram A diagram that uses circles to show relationships among sets of things

125 vertex The point at which two rays of an angle or two or more line segments meet in a plane figure, or where three or more sides meet in a solid figurepointraysangleline segmentsplane figuresolid figure

126 vertical The direction from top to bottom

127 volume The measure of the space a solid figure occupies

128 x-coordinate The first number in an ordered pairordered pair (4, 6) (2, 5)

129 y-coordinate (3, 7) (5, 9) The second number in an ordered pairordered pair

130 Zero property for multiplication The property which states that the product of zero and any number is zeroproduct 13 X 0 = 0 0 X 7 = 0

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