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VOCABULARY LISTS > TEST PREP

Math, Grades 6-8 54 words

January 15, 2010 By Vocabulary Lists (New York, NY) Vocabulary.com Moderator
Vocabulary list related to mathematics for students in grades 6-8.

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Definitions Notes & Examples Words Only
  1. array
    an impressive display
  2. composite number
    an integer that is divisible without remainder by at least one positive integer other than itself and one
  3. congruence
    the quality of agreeing; being suitable and appropriate
  4. conjecture
    to believe especially on uncertain or tentative grounds
  5. coordinate geometry
    the use of algebra to study geometric properties; operates on symbols defined in a coordinate system
  6. coordinate system
    a system that uses coordinates to establish position
  7. cube root
    a number that when multiplied three times equals a given number
  8. dilation
    the act of expanding an aperture
  9. dispersion
    spreading widely or driving off
  10. experiment
    the act of conducting a controlled test or investigation
  11. exponent
    a mathematical notation indicating the number of times a quantity is multiplied by itself
  12. fair chance
    a reasonable probability of success
  13. frequency
    the number of occurrences within a given time period
  14. frequency distribution
    a distribution of observed frequencies of occurrence of the values of a variable
  15. grid
    a pattern of regularly spaced horizontal and vertical lines
  16. growth rate
    the rate of increase in size per unit time
  17. inductive reasoning
    reasoning from detailed facts to general principles
  18. integer
    any of the natural numbers (positive or negative) or zero
  19. intercept
    seize on its way
  20. linear equation
    a polynomial equation of the first degree
  21. maximum
    the greatest or most complete or best possible
  22. minimum
    the smallest possible quantity
  23. odds
    the likelihood of a thing occurring rather than not occurring
  24. overestimation
    an appraisal that is too high
  25. perspective
    a way of regarding situations or topics etc.
  26. plane
    (mathematics) an unbounded two-dimensional shape
  27. plane figure
    a two-dimensional shape
  28. polygon
    a closed plane figure bounded by straight sides
  29. prime factor
    the prime factors of a quantity are all of the prime quantities that will exactly divide the given quantity
  30. projection
    the act of expelling or projecting or ejecting
  31. proportion
    the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree
  32. quadratic equation
    an equation in which the highest power of an unknown quantity is a square
  33. quadrilateral
    a four-sided polygon
  34. random sample
    a sample in which every element in the population has an equal chance of being selected
  35. random variable
    a variable quantity that is random
  36. range
    a variety of different things or activities
  37. rate
    a quantity or amount or measure considered as a proportion of another quantity or amount or measure
  38. rational number
    an integer or a fraction
  39. relative frequency
    the ratio of the number of observations in a statistical category to the total number of observations
  40. reliability
    the quality of being dependable or reliable
  41. Roman numeral
    a symbol in the old Roman notation; I,V,X,L,C,D,M represent 1,5,10,50,100,500,1000 respectively in Arabic notation
  42. root
    (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground
  43. sequence
    a following of one thing after another in time
  44. simplification
    the act of reducing complexity
  45. slope
    be at an angle
  46. solid figure
    a three-dimensional shape
  47. spreadsheet
    a screen-oriented interactive program enabling a user to lay out financial data on the screen
  48. square root
    a number that when multiplied by itself equals a given number
  49. tessellation
    the act of adorning with mosaic
  50. tetrahedron
    any polyhedron having four plane faces
  51. underestimation
    an estimation that is too low; an estimate that is less than the true or actual value
  52. unknown
    not known
  53. variable
    something that is likely to vary; something that is subject to variation
  54. vertex
    the highest point (of something)