65 terms

5th Grade NWEA Vocabulary

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Decimal Place Value
Is a positional system of notation in which position of a number with respect to a point determines its valuem
Mixed Numbers
A numbers consisting of an integer and proper fraction
Equivalent Fractions
Are different fractions that name the same numbers
Prime Numbers
Is a whole number greater than 1, whose only two number-whole factors are 1 and itself
Composite Numbers
A whole number that can be divided evenly by numbers other than 1 or itself
Even and Odd Numbers
Odd is an integer which is nota multiple of two
Even is an integer which is "evenly divisible" by two
Fraction: Add
Make sure the bottom denominators are the same
Add the numerators, put the answer over the denominator
Simplify the fraction (if needed)
Fraction: Subtract
Make sure the bottom denominators are the same
Subtract the numerators, put the answer over the same denominator
Simplify the fraction (if needed)
Area: Square Units
Is a square whose sides have length of 1
Perimeter: Units
A quantity chosen as a standard in terms of which other quantities may be expressed
Volume
The amount of space that a substance or object occupies, or that is enclosed with a container, especially when great
Height
A line segment in a polygon that is perpendicular to the base
Width
The measurement or extent of something from side to side
Length
The measurement or extent of something from end to end
Kilometer
A metric unit of measurement equal to 1000 meters
Meter
The fundamental of unit of length in the metric system, equal to 100 centimeters
Centimeter
A metric unit of length, equal to one hundredth of a meter
Grams
Mass units for density
Liter
is the base unit for volume
Milliliter
Liquid volume units
Chord
The distance from one point on the circle to another point on the circle.
Diameter
the length of a straight line passing through the center of a circle and connecting two points on the circumference
Radius
The distance from the center of a circle to the outside edge of the circle.
Circumference
the distance around a circle; C = 2pir; C = pi * d
Acute Angle
an angle less than 90 degrees but more than 0 degrees
Obtuse Angle
an angle between 90 and 180 degrees
Equilateral Triangle
A triangle with all sides congruent.
Scalene Triangle
all sides have different length
Isosceles Triangle
at least two sides are of equal length and at least two angles are of equal measure
Rectangle
A parallelogram with four right angles
Square
four sides of equal length; each angle is a right angle
Parallelogram
a quadrilateral whose opposite sides are both parallel and equal in length
Rhombus
A parallelogram with four congruent sides
Trapezoid
a quadrilateral with exactly one pair of parallel sides
Combine
(P1V1)/T1=(P2V2)/T2
Sample Space
the set of all possible outcomes
Line Graph
A visual representation of data change over time.
Stem-and-Leaf Plot
A method of organizing data into categories by splitting the data into "leaves," which are the ones place digit of the data values and the "stems," which are comprised of the first digit (or digit) of each data value.
Average
mean
Prism
A polyhedron that has two parallel, congruent bases in the shape of polygons.
Mean
Add all numbers, divide by number of numbers.
Median
The middle number from small to large, choose median.
Mode
value in the list that appears most often
Range
The range of the numbers in a group of data is the difference between the greatest number G in the data and the least number L in the data; that is, G-L
Patterns
reoccurring trends or shapes in the data
Variable Expression
an expression that contains at least one variable
Identity Property
there is a unique real number 0 such that for every real number a, a + 0 = a and 0 + a = a
Addition
P(A or B) = P(A) + P(B) - P(A and B
Multiplication
P(A∩B)= P(A)×P(B|A) is used when we are interested in the probability of two events occurring simultaneously
Commutative Property
a+b=b+
Associative Propety
(a+b)+c=a+(b+c
Distributive Property
a(b+c)=ab+ac
Number Line
Every line is a set of points that can be placed onto a 1-1 correspondence with real numbers
Equation
a mathematical sentence that states that two expressions name the same number
Equality
same dimensions and each element is equal to its corresponding element
Ratio
A ratio is a statement of how two numbers compare. It is a comparison of the size of one number to the size of another number.
Absolute Value
The distance between a number and 0 on the number line
Fraction: Multiplication
To multiply the fraction by a whole number,it is necessary to multiply by a whole number, and to leave without modifications a denominator
Fraction Division
To divide fraction into whole number, it is necessary to multiply denominator by a whole number, and to leave without modifications a numerator.
Percent
a ratio usually out of 100 {ex. 33% 90%}
Equivalent Fractions
Two or more fractions that simplify into the same ratio or fraction
Exponential Function
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Whole Numbers
set of natural numbers and zero
Integers
Positive and negative counting number
Rational Numbers
Ratio of two integers ex. Fractions, Terminating decimals, Repeating decimal