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VOCABULARY LISTS > TEST PREP

Math, Grades 1-5 115 words

January 15, 2010 By Vocabulary Lists (New York, NY) Vocabulary.com Moderator
Vocabulary list related to mathematics for students in grades 1-5.

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Definitions Notes & Examples Words Only
  1. acute angle
    an angle less than 90 degrees but more than 0 degrees
  2. addend
    a number that is added to another number (the augend)
  3. addition
    the arithmetic operation of summing; calculating the sum of two or more numbers
  4. angle
    the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
  5. area
    the extent of a 2-dimensional surface enclosed within a boundary
  6. bar graph
    a chart with bars whose lengths are proportional to quantities
  7. capacity
    capability to perform or produce
  8. cardinal number
    the number of elements in a mathematical set; denotes a quantity but not the order
  9. centimeter
    a metric unit of length equal to one hundredth of a meter
  10. chance
    an unknown and unpredictable phenomenon that causes an event to result one way rather than another
  11. circle
    ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point
  12. circumference
    the length of the closed curve of a circle
  13. cluster
    a grouping of a number of similar things
  14. common denominator
    an integer that is a common multiple of the denominators of two or more fractions
  15. constant
    uninterrupted in time and indefinitely long continuing
  16. corner
    the point where three areas or surfaces meet or intersect
  17. cube
    a hexahedron with six equal squares as faces
  18. cylinder
    a surface generated by rotating a parallel line around a fixed line
  19. data
    a collection of facts from which conclusions may be drawn
  20. decimal
    a number in the decimal system
  21. diagram
    a drawing intended to explain how something works; a drawing showing the relation between the parts
  22. difference
    the quality of being unlike or dissimilar
  23. direction
    a line leading to a place or point
  24. distance
    the property created by the space between two objects or points
  25. dividend
    a number to be divided by another number
  26. divisibility
    the quality of being divisible; the capacity to be divided into parts or divided among a number of persons
  27. division
    the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart
  28. elapsed time
    the time that elapses while some event is occurring
  29. equation
    a mathematical statement that two expressions are equal
  30. equilateral triangle
    a three-sided regular polygon
  31. estimation
    an approximate calculation of quantity or degree or worth
  32. fraction
    a small part or item forming a piece of a whole
  33. function
    what something is used for
  34. gram
    a metric unit of weight equal to one thousandth of a kilogram
  35. graph
    a visual representation of the relations between certain quantities plotted with reference to a set of axes
  36. greatest common factor
    the largest integer that divides without remainder into a set of integers
  37. grouping
    any number of entities (members) considered as a unit
  38. height
    the vertical dimension of extension; distance from the base of something to the top
  39. histogram
    a bar chart representing a frequency distribution; heights of the bars represent observed frequencies
  40. improbability
    the quality of being improbable
  41. improper fraction
    a fraction whose numerator is larger than the denominator
  42. inch
    a unit of length equal to one twelfth of a foot
  43. inequality
    lack of equality
  44. investigation
    an inquiry into unfamiliar or questionable activities
  45. isosceles triangle
    a triangle with two equal sides
  46. least common multiple
    the smallest multiple that is exactly divisible by every member of a set of numbers
  47. length
    the linear extent in space from one end to the other; the longest dimension of something that is fixed in place
  48. location
    the act of putting something in a certain place
  49. mass
    the property of a body that causes it to have weight in a gravitational field
  50. mean
    denote or connote
  51. measurement
    the act or process of assigning numbers to phenomena according to a rule
  52. measuring cup
    graduated cup used to measure liquid or granular ingredients
  53. median
    relating to or situated in or extending toward the middle
  54. meter
    the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards)
  55. metric system
    a decimal system of weights and measures based on the meter and the kilogram and the second
  56. midpoint
    a point equidistant from the ends of a line or the extremities of a figure
  57. minute
    a unit of time equal to 60 seconds or 1/60th of an hour
  58. mode
    how something is done or how it happens
  59. multiple
    having or involving or consisting of more than one part or entity or individual
  60. multiplication
    an arithmetic operation that is the inverse of division; the product of two numbers is computed
  61. number
    a concept of quantity involving zero and units
  62. numeral
    of or relating to or denoting numbers
  63. obtuse angle
    an angle between 90 and 180 degrees
  64. ordinal number
    the number designating place in an ordered sequence
  65. orientation
    the act of orienting
  66. outcome
    something that results
  67. parallelogram
    a quadrilateral whose opposite sides are both parallel and equal in length
  68. path
    an established line of travel or access
  69. pattern
    a perceptual structure
  70. percent
    a proportion in relation to a whole (which is usually the amount per hundred)
  71. perimeter
    a line enclosing a plane areas
  72. pie chart
    a circular chart divided into triangular areas proportional to the percentages of the whole
  73. pound
    16 ounces avoirdupois
  74. prediction
    a statement made about the future
  75. prime number
    an integer that has no integral factors but itself and 1
  76. prism
    a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
  77. probability
    a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible
  78. product
    an artifact that has been created by someone or some process
  79. proof
    any factual evidence that helps to establish the truth of something
  80. pyramid
    a polyhedron having a polygonal base and triangular sides with a common vertex
  81. quotient
    the number obtained by division
  82. rectangle
    a parallelogram with four right angles
  83. remainder
    something left after other parts have been taken away
  84. rhombus
    a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
  85. right angle
    the 90 degree angle between two perpendicular lines
  86. rotation
    the act of rotating as if on an axis
  87. rounding
    (mathematics) a miscalculation that results from rounding off numbers to a convenient number of decimals
  88. ruler
    a person who rules or commands
  89. sample
    a small part of something intended as representative of the whole
  90. scale
    an ordered reference standard
  91. set
    put into a certain place or abstract location
  92. similarity
    the quality of being similar
  93. size
    the physical magnitude of something (how big it is)
  94. sphere
    a three-dimensional closed surface such that every point on the surface is equidistant from the center
  95. square
    (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon
  96. subset
    a set whose members are members of another set; a set contained within another set
  97. subtraction
    an arithmetic operation in which the difference between two numbers is calculated
  98. sum
    a quantity obtained by the addition of a group of numbers
  99. surface area
    the extent of a 2-dimensional surface enclosed within a boundary
  100. survey
    consider in a comprehensive way
  101. symbolic representation
    something visible that by association or convention represents something else that is invisible
  102. table
    a piece of furniture having a smooth flat top that is usually supported by one or more vertical legs
  103. temperature
    the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
  104. time interval
    a definite length of time marked off by two instants
  105. time zone
    any of the 24 regions of the globe (loosely divided by longitude) throughout which the same standard time is used
  106. trial and error
    experimenting until a solution is found
  107. triangle
    a three-sided polygon
  108. truncation
    the act of cutting short
  109. variability
    the quality of being subject to variation
  110. Venn diagram
    a diagram that uses circles to represent mathematical or logical sets pictorially inside a rectangle (the universal set); elements that are common to more than one set are represented by intersections of the circles
  111. verification
    additional proof that something that was believed (some fact or hypothesis or theory) is correct
  112. volume
    the property of something that is great in magnitude
  113. whole number
    any of the natural numbers (positive or negative) or zero
  114. width
    the extent of something from side to side
  115. zero
    a mathematical element that when added to another number yields the same number