1. even number Numbers ending in 0, 2, 4, 6, or 8.
A number divisible by 2.
Numbers ending in
0, 2, 4, 6, or 8.

2. A number NOT divisible by 2.
odd number
A number NOT divisible by 2.
Numbers ending in
1, 3, 5, 7, 9.

3. also called the Grouping Property
associative property
of multiplication
When three or more numbers are multiplied, the product is the same regardless of the grouping of the factors.
(2 x 3) x 4 = 24
2 x (3 x 4) = 24
(2 x 4) x 3 = 24
also called the Grouping Property

4. The numbers added together
addend
The numbers added together
to form a sum.
= 15
sum

5. factors The numbers that are multiplied in a multiplication problem.
3 x 5 = 15
product

6. sum difference product quotient
the answer to an addition problem
difference
the answer to a subtraction problem
product
the answer to a multiplication problem
quotient
the answer to a division problem

7. commutative property of multiplication The property that states that
changing the order of the factors
does not affect the product.
Example:
3 x 5 = and x 3 = 15

8. line A straight path that extends
A straight path that extends
in both directions without end; marked with an arrowhead at
each end.

9. A piece of a line that has
line segment
A piece of a line that has
two endpoints.

10. parallel lines
Two (or more) lines that run the same distance apart at every point and will never intersect.
para el ll
lines

11. A line with one end point that extends non-stop in the
ray
A line with one end point that extends non-stop in the
opposite direction.

12. A shape formed by two rays that share an endpoint.
angle
A shape formed by two rays that share an endpoint.

13. vertex plural: vertices The point where:
two or more rays share an endpoint.
the edges of a solid figure meet.
The point at the top of a cone.

14. intersecting lines
Two or more lines that
meet or cross at a point.

15. Two lines that intersect
perpendicular lines
Two lines that intersect
and form right angles.

16. Tool used to measure angles.
protractor
Tool used to measure angles.

17. 1 rotation = 90° 2 rotations = 180° 3 rotations = 270°
A full circle rotation is equal to 360° (degrees)
When divided into four equal sections, each section is worth 90°
1 rotation = 90°
2 rotations = 180°
3 rotations = 270°
4 rotations = 360°
360°
90°
90°
90°
270°
90°
90°
90°
90°
90°
180°

18. An angle measuring 90 degrees.
right angle
An angle measuring 90 degrees.

19. acute angle
An angle that measures
LESS than 90 degrees.

20. obtuse angle
An angle that measures
MORE than 90 degrees.

21. straight angle
An angle that measures
180 degrees.

22. polygon four criteria for a A polygon
is made up of all straight line segments
is closed (has no breaks in the line segments)
is 2-dimensitional
has no lines that cross over each other

23. A polygon with all equal sides and all equal angles.
regular polygon
A polygon with all equal sides and all equal angles.

24. have all equal sides and
irregular polygon
A polygon that does NOT
have all equal sides and
equal angles.

25. rectangle A rectangle: four criteria of a is a quadrilateral.
is a quadrilateral.
is made up of four line segments.
has four 90° angles.
is a parallelogram – a four sided polygon with two pairs of parallel sides.

26. A quadrilateral (four sided polygon) with two pairs of parallel sides.
parallelogram
A quadrilateral (four sided polygon) with two pairs of parallel sides.

27. A quadrilateral (four sided polygon) with one pair of parallel sides.
trapezoid
A quadrilateral (four sided polygon) with one pair of parallel sides.

28. congruent Figures that have the same size AND same shape.
The figures do not have be in the same position.
If you placed the two shapes directly on top of each
other they would match up perfectly.

29. similar
Figures that have the same shape,
but are not the same size.

30. line of symmetry The line that divides a figure in half
so that both halves are exactly
the same.

31. A triangle with all three
equilateral
triangle
A triangle with all three
sides of equal length.
3 in.
3 in.
3 in.

32. isosceles triangle A triangle with two sides that
are equal and one that is not.
5 in.
5 in.
3 in.

33. A triangle with all sides that
scalene triangle
A triangle with all sides that
are a different length.
8 in.
4 in.
9 in.

34. A triangle with at least
right triangle
A triangle with at least
one right angle.

35. triangle
A polygon with 3 sides.

36. quadrilateral
A polygon with 4 sides.

37. quadrilateral A polygon with 4 sides. parallelograms trapezoids
rhombus

38. A quadrilateral with two pairs of parallel sides and four equal sides.
rhombus
A quadrilateral with two pairs of parallel sides and four equal sides.

39. pentagon
A polygon with 5 sides.

40. hexagon
A polygon with 6 sides.

41. octagon
A polygon with 8 sides.

42. decagon
A polygon with 10 sides.

43. obtuse triangle A triangle having an obtuse angle.
One of the angles of the triangle
measures more than 90 degrees.

44. A triangle having three acute angles.
acute triangle
A triangle having three acute angles.

45. Which months
have 30 days?
April
June
September
November

46. Which months have 31 days? January March May July August October
December

47. area The number of square units that can fit inside of a shape.
To find the _______ , count
the square units.
area = 9 square units

48. perimeter The distance around the outside of a shape. perimeter
To find the __________ , add the length of all the sides.
perimeter
2 cm + 3 cm + 3 cm = 8 cm The perimeter of this figure is
8 centimeters.

49. bar graph

50. A flat surface of a solid shape.

51. The line where two surfaces of a 3-dimensional shape meet.
edge
The line where two surfaces of a 3-dimensional shape meet.

52. A corner where two or more straight lines meet on a
vertex
vertices (plural)
A corner where two or more straight lines meet on a
3-dimenstional shape.
vertex

53. The number below the bar in a fraction.
denominator
The number below the bar in a fraction.
It tells the total number of equal parts or groups into which the whole or group has been divided.

54. The number above the bar in a fraction.
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.

55. volume Volume = Length x Width x Height V = L x W x H
The amount of space a solid figure takes up.
Volume = Length x Width x Height
V = L x W x H
The volume of this figure is 24 cubic units.

56. square pyramid
A 3-dimensional solid with a base that is a square and four faces that are triangles.

57. measuring temperature.
Celsius
The metric unit for
measuring temperature.

58. Fahrenheit
Customary or standard unit
for measuring temperature.

59. standard form
2,394
A way to write numbers
by using the digits 0-9.

60. expanded form
241 =

61. two-hundred fifty-seven
word form
A way to write numbers
by using words.
two-hundred fifty-seven

62. Used on a pictograph to tell how many each picture stands for.
key
Used on a pictograph to tell how many each picture stands for.

63. line plot

64. A graph that uses a line to show how something changes over time.
line graph
A graph that uses a line to show how something changes over time.

65. Number represented by a whole number and a fraction.
mixed number
Number represented by a whole number and a fraction. 3 5 8

66. A fraction in which the numerator is larger than
 fraction greater
than one
A fraction in which the numerator is larger than
the denominator. 5 3

67. A solid figure with six faces
rectangular prism
A solid figure with six faces
that are rectangles.

68. A metric unit for measuring mass.
gram and kilogram
A metric unit for measuring mass.
1,000 grams = 1 kilogram

69. 1,000 The prefix kilo- is equal to kilometer = 1,000 meters
kilogram = 1,000 grams

70. 100 centi- The prefix is equal to century = 100 years
100 centimeters = 1 meter

71. Metric units for measuring capacity.
liter and milliliter
Metric units for measuring capacity.
1,000 milliliters = 1 liter

72. The prefix milli-
is equal to
1,000

73. decimeter A metric unit for measuring length.
A metric unit for measuring length.
10 centimeters = 1 decimeter A decimeter (dm) is about the width
of an adult's hand.

74. ante meridiem a.m. The time of day starting at midnight
a.m.
The time of day starting at midnight
and ending at noon.
In Latin, ante meridiem means
“before the midday.”

75. post meridiem
p.m.
The time of day starting at noon and ending at midnight.
In Latin, post meridiem means “after midday.”

76. analog clock
digital clock

77. colon :
The symbol used to separate the hour from the minutes on a digital clock.

78. array A model of multiplication that arranges objects in
rows and columns.

79. The amount a container can hold.
capacity
The amount a container can hold.
Customary
cups
pints
quarts
gallons

80. The amount a container can hold.
capacity
The amount a container can hold.
Metric
milliliters
liters
kiloliters

81. temperature Freezing Point of Water 32 degrees Fahrenheit 0 degrees
Celsius
Boiling Point of Water
212 degrees Fahrenheit
100 degrees
Normal Body Temperature
98.6 degrees Fahrenheit
37 degrees

82. Place Value Chart , thousandths hundredths tenths ● hundred millions
hundred thousands
ten thousands
thousands
hundreds
tens
ones
tenths
hundredths
thousandths
decimals

83. Example: 634,822
Standard Form: 634,822
Word Form: six hundred thirty-four thousand, eight hundred twenty-two
Expanded Form: 600, , , = 634,822
What is the value of the underlined digit in the number 634,822 = 600,000
What place value does the underlined digit hold? = hundred thousands

84. Distributive Property of Multiplication
The property that states that multiplying a sum by a number is the same as multiplying each addend by the number and then adding the products.
break down the 8 into 5 + 3
7 x 8
5 + 3
(7 x 5) + (7 x 3)
= 56
break down the 16 into
5 x 16
10 + 6
(5 x 10) + (5 x 6)
= 80

85. Identity Property of Multiplication
The property that states that the product of any number and 1 is that number.
Examples:
5 × 1 = 5
248 x 1 = 248
1 × 8 = 8

86. cube
A three-dimensional shape
with six congruent square faces.

87. cone
A three-dimensional, pointed
shape that has a flat, round base.

88. 3-dimensional object shaped like a can
cylinder
3-dimensional object shaped like a can

89. Another word for information.
data
Another word for information.
Information collected about people or things and can be represented in graph form.

90. diagonal
A line segment that connects two vertices of a polygon that are not next to each other.

91. inverse operations Opposite operations. addition and subtraction
Operations that undo and check one another.
addition and subtraction
are inverse operations
multiplication and division
are inverse operations.