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5th Grade Math Vocabulary Flashcards

5th Grade Math Vocabulary Flashcards
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Perimeter
Perimeter is the distance around the outside of figures or shapes (except for circles); measured in inches, feet, meters, etc. used to measure the outside of a figure.
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Area
Area is used to measure 2D figures or shapes length x width; measured in square inches, square feet, square meters, and so on.
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Volume
Volume is the amount of space inside a solid shape or figure like a cube; units are always in 'cubic' - cubic inches, cubic feet, cubic yards, cubic meters, etc. (length x width x height).
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Cubic Unit
A cubic unit measures the volume of solid shapes (3D); 3 quantities in the same unit are multiplied together - side x side x side.
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Corresponding Terms
Terms that appear in the same place in two comparable circumstances.
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Equivalent Fractions (or Like Fractions)

A set of fractions that are equal to each other.

2/8 is equivalent to 1/4.

factors of 2 = 1, 2

factors of 8 = 1, 2, 4, 8

Greatest Common Factor = 2

2 ÷ 2 = 1

8 ÷ 2 = 4

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Mixed Fractions (or Mixed Numbers)

A whole number and a fraction together as one number.

5 ½ is a mixed number.

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Improper Fractions

The numerator (the top number) is more (larger) than the denominator (the bottom number).

18/2 is an improper fraction.

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Proper Fraction

Any fraction less than 1.

The numerator (the top number) is always less than the denominator (the bottom number).

So, 3/5 and 7/9 are proper fractions.

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Finite Decimal

Also called a terminating decimal; it does not repeat and is not continuous.

1.25 is a finite decimal

And an infinite decimal is a repeating decimal 0.33333… is an infinite decimal.

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Decimal Place Value

Determines number value depending on the position of the number; each position has a value of Power of 10.

8.7654: |ones|decimal point|tenths|hundredths|thousandths|ten thousandths |8|.|7|6|5|4

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Order of Operations

Rule that states in which order to complete operations;

PEMDAS - parenthesis, exponents, multiplication, division, addition, and subtraction.

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Powers of 10

10 as a base to use with an exponent.

10 with an exponent of 0 = 1

10 with an exponent of 1 = 10

10 with an exponent of 2 = 100

10 with an exponent of 3 = 1,000

10 with an exponent of 4 = 10,000

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Base of an Exponent

It is the number that gets multiplied by itself the amount of times the exponent states.

In 4³, 4 is the base of the exponent 3.

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Exponent

An exponent tells you how many times to multiply a number by itself.

In 5², 2 is the exponent.

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30 cards in set

Flashcard Content Overview

This 5th Grade Vocabulary Flashcard set offers students a way to prepare, study, and or test themselves on the basic terminology they will need to throughout 5th grade and beyond. There are a total of 30 flashcards/terms included in this set. On the front of each flashcard, you will find the math vocabulary term. The definition and explanation of the term is on the back.

Front
Back
Exponent

An exponent tells you how many times to multiply a number by itself.

In 5², 2 is the exponent.

Base of an Exponent

It is the number that gets multiplied by itself the amount of times the exponent states.

In 4³, 4 is the base of the exponent 3.

Powers of 10

10 as a base to use with an exponent.

10 with an exponent of 0 = 1

10 with an exponent of 1 = 10

10 with an exponent of 2 = 100

10 with an exponent of 3 = 1,000

10 with an exponent of 4 = 10,000

Order of Operations

Rule that states in which order to complete operations;

PEMDAS - parenthesis, exponents, multiplication, division, addition, and subtraction.

Decimal Place Value

Determines number value depending on the position of the number; each position has a value of Power of 10.

8.7654: |ones|decimal point|tenths|hundredths|thousandths|ten thousandths |8|.|7|6|5|4

Finite Decimal

Also called a terminating decimal; it does not repeat and is not continuous.

1.25 is a finite decimal

And an infinite decimal is a repeating decimal 0.33333… is an infinite decimal.

Proper Fraction

Any fraction less than 1.

The numerator (the top number) is always less than the denominator (the bottom number).

So, 3/5 and 7/9 are proper fractions.

Improper Fractions

The numerator (the top number) is more (larger) than the denominator (the bottom number).

18/2 is an improper fraction.

Mixed Fractions (or Mixed Numbers)

A whole number and a fraction together as one number.

5 ½ is a mixed number.

Equivalent Fractions (or Like Fractions)

A set of fractions that are equal to each other.

2/8 is equivalent to 1/4.

factors of 2 = 1, 2

factors of 8 = 1, 2, 4, 8

Greatest Common Factor = 2

2 ÷ 2 = 1

8 ÷ 2 = 4

Corresponding Terms
Terms that appear in the same place in two comparable circumstances.
Cubic Unit
A cubic unit measures the volume of solid shapes (3D); 3 quantities in the same unit are multiplied together - side x side x side.
Volume
Volume is the amount of space inside a solid shape or figure like a cube; units are always in 'cubic' - cubic inches, cubic feet, cubic yards, cubic meters, etc. (length x width x height).
Area
Area is used to measure 2D figures or shapes length x width; measured in square inches, square feet, square meters, and so on.
Perimeter
Perimeter is the distance around the outside of figures or shapes (except for circles); measured in inches, feet, meters, etc. used to measure the outside of a figure.
Radius
A line segment that begins in the middle or center of a circle and ends at the edge.
Circumference
Circumference is distance around a circle.
Coordinate System
A Coordinate System is a 2-dimensional grid that has 2 perpendicular intersecting lines, coordinates, and quadrants.
Axis

Axis is the line of reference for the measurement of coordinates or points.

One line is an axis.

Two intersecting lines are axes.

Intersect
Intersect means to cross or meet at one point, such as lines that intersect on a coordinate grid.
X-Axis
The X-axis is the horizontal axis, or line on the coordinate grid.
Y-Axis
The Y-axis is the vertical axis, or line on the coordinate grid.
Coordinates
Coordinates are ordered pair of numbers that tell you a point on the coordinate grid (x,y).
Quadrants
Quadrants are the sections created by the perpendicular lines on a coordinate grid.
X-Coordinate

With a pair of coordinates, or ordered pair of numbers, the x-coordinate is the first value written;

in the coordinates (5, 4), 5 would be the x-coordinate.

Y-Coordinate

With a pair of coordinates, or ordered pair of numbers, the y-coordinate is the second value written;

in the coordinates (2, 6), 6 would be the y-coordinate.

Plane
A plane is a flat surface that continues on forever - just like a piece of paper; it is considered a flat 2D surface.
Solid Figure

A solid figure is a figure that has three dimensions (3D);

it has length, width, and height - like a cube or box.

Base of a Solid Figure
Many solid figures, or shapes have more than one base; you can think of the base as the part of the figure that sits/faces down.
Right Rectangular Prism
A Right Rectangular Prism is a solid figure (3D) with 6 sides that are rectangular shapes - each corner makes a right angle; a great example is a cereal box.

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