math words

melanie S.
words that mean add, subtract, multiply or divide and more.
Includes geometry vocabulary.
68 words 864 learners

Learn words with Flashcards and other activities

Definition First
Print Flashcards

Other learning activities

Answer a few questions about each word. Use this to prep for your next quiz! Compete with other teams in real time to see who answers the most questions correctly! Test your spelling acumen. Read the definition, listen to the word and try spelling it!

Teaching tools

Create and assign quizzes to your students to test their vocabulary. Assign learning activities including Practice, Vocabulary Jams and Spelling Bees to your students, and monitor their progress in real-time.

Full list of words from this list:

words only definitions & notes
  1. plus
    the arithmetic operation of summing
    add
  2. quotient
    the number obtained by division
    Book B All work through grade 6, except estimates of quotient figures in long division. Thorndike, Edward L. (Edward Lee)
    divide
  3. difference
    the number that remains after subtraction
    subtract
  4. combine
    put or add together
    add
  5. separate
    force, take, or pull apart
    Twenty people were separated into 2 groups. One group had 8 people. How many did the other group have?
    also cut up
  6. together
    assembled in one place
    addition
  7. change
    the balance of money received
    The item costs $5.50 . I give the clerk a ten dollar bill. How much change will I get back?
    subtraction
  8. times
    an arithmetic operation that is the inverse of division
    multiplication
  9. remaining
    not used up
    subtraction.
  10. increased
    made greater in size or amount or degree
    addition
  11. total
    the whole amount
    addition
  12. shared
    have in common; held or experienced in common
    share equally is to divide
  13. sum
    a quantity obtained by the addition of a group of numbers
    addition
  14. leftover
    not used up
    subtraction
  15. less
    fewer
    10 less 4 means 10 - 4 = 6 NOTE: 10 LESS THAN 4 is NOT the same! This means 4 - 10 = -6
  16. fewer
    quantifier meaning a smaller number of
    I have 8 fewer papers that Janet. She has 11 papers. How many do I have?
    subtraction
  17. product
    a quantity obtained by multiplication
    multiply
  18. factor
    any of numbers that form a product when multiplied together
    6 x 3 = 18. 6 and 3 are factors of 18
  19. decreased
    made less in size or amount or degree
    subtraction
  20. split
    separate into parts or portions
    division
  21. half
    one of two equal parts of a divisible whole
    divide by 2
  22. quarter
    one of four equal parts
    divide by 4
  23. cube
    the product of three equal terms
    multiply
  24. square
    a polygon with four equal sides and four right angles
    1. a geometry shape
    2. to multiply a number by itself
  25. more
    greater in size or amount or extent or degree
    i have more than you
    addition
  26. addend
    a number that is combined with another number
    6 + 3 = 9; 6 and 3 are the addends
  27. average
    around the middle of a scale of evaluation
    add up all the values and then divide by the number of values;

    add anad then divide
  28. coordinate
    a number that identifies a position relative to an axis
    an ordered pair (x,y) that represents a point on a graph
  29. denominator
    the divisor of a fraction
    the bottom number of a fraction
  30. numerator
    the dividend of a fraction
    the top number of a fraction
  31. equation
    a mathematical statement that two expressions are the same
    must have a equal sign
  32. expression
    a group of symbols that make a mathematical statement
    Does NOT have an equal sign
  33. estimate
    an approximate calculation of quantity or degree or worth
  34. fraction
    the quotient of two rational numbers
    a fraction is a division problem!!!
  35. integer
    any natural number or its negative, or zero
    positive and negative WHOLE numbers.
  36. mean
    an average computed by adding some function of the numbers
    also known as the average
  37. median
    relating to the middle value of an ordered set of values
    the number in the middle position when numbers are listed in order
  38. mode
    the most frequent value of a random variable
    number that appears the MOST
  39. prime
    a number that has no factor but itself and 1
    2,3,5,7,11,13...
  40. probability
    a measure of how likely it is that some event will occur
  41. acute
    (of an angle) less than 90 degrees
    acute angle; acute triangle
  42. angle
    the space between two lines or planes that intersect
    the point of intersection is called the vertex
  43. area
    the extent of a two-dimensional surface within a boundary
    find area of: square, rectangle, parallelogram, triangle, trapezoid, circle etc.
    There are formulas for each shape. The area is the surface INSIDE the shape
  44. perimeter
    a line enclosing a plane area
    distance all the way around something.
  45. circle
    a plane curve with every point equidistant from the center
    better definition:
    Infinite number of points that are the same distance from a center point; Like a wagon wheel.
  46. circumference
    the length of the closed curve of a circle
    distance around a circle
  47. congruent
    corresponding in character or kind
    simply: Same size and shape
  48. equilateral
    having all sides of the same length
    can be a triangle with all sides equal.

    When other shapes have all equal sides, they use the word REGULAR to tell you all the sides are equal
  49. hexagon
    a six-sided polygon
  50. intersecting
    crossed or intersected in the form of an X
    what 2 lines do when they cross each other.
  51. isosceles
    (of a triangle) having two sides of equal length
  52. line
    a length between two points
  53. segment
    one of several parts that fit with others to make a whole
    parts of a line
  54. obtuse
    of an angle, between 90 and 180 degrees
    can be identified as being a FAT angle
  55. octagon
    a shape with eight angles and eight sides
  56. parallel
    being everywhere equidistant and not intersecting
    lines that will never cross each other are parellel
  57. parallelogram
    a quadrilateral whose opposite sides are parallel and equal
  58. pentagon
    a shape with five angles and five sides
  59. perpendicular
    intersecting at or forming right angles
    think of the letter 'T' Horizontal and vertical lines intersect to for a perpendicular angle
    Forms a 90 degree angle
  60. polygon
    a closed plane figure bounded by straight sides
    polygons do not have curves or openings
  61. quadrilateral
    a four-sided polygon
    that is all it needs: 4 sides
  62. ray
    (mathematics) a straight line extending from a point
    it looks like a line but one end stops and the other end keeps going
  63. rhombus
    a parallelogram with four equal sides
    looks like a square that is leaning over
  64. right
    having the axis perpendicular to the base
    Formed by perpendicular lines ; angle, triangle : is 90 degrees
  65. scalene
    having three sides of different lengths
  66. straight
    free from curves or angles
    a straight angle has 180 degrees. It looks like a straight line with a point on it as the vertex
  67. symmetry
    exact reflection of form on opposite sides of a line
    better said: a shape has symmetry if it can be folded so that the 2 halves match
  68. volume
    the amount of 3-dimensional space occupied by an object
    the inside of a 3D shape. How much a container will hold
Created on Fri May 11 09:14:17 EDT 2012 (updated Fri May 11 10:25:36 EDT 2012)

Sign up now (it’s free!)

Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.