# 4th Grade Math Vocabulary Flashcards

4th Grade Math Vocabulary Flashcards
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Line Segment
A line segment is a line where both sides are an end point. A line segment can also be a line that connects two points.
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Parallel
Parallel lines are two or more lines that are side by side and will never touch.
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Perpendicular
A perpendicular line is when one line meets another line and makes a 90 degree angle. Perpendicular lines may look like the letter 'T'.
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Circumference
The circumference, for example a circle, is the distance around an object.
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Area
The area is the surface of any 2D shape. To find the area you multiply the height by the width.
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Diameter
The diameter is the distance from one side of an object to the opposite side by measuring through the middle.
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Hour
An hour is a unit used to measure time. An hour is made of 60 minutes. There are 24 hours in 1 day. On an analog clock, the hour hand is the shortest one.
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Minute
A minute is a unit used to measure time. A minute is made of 60 seconds. 60 minutes are in 1 hour. On an analog clock, the minute hand is the longest one.
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Second
A second is a unit used to measure time. There are 60 seconds in 1 minute. On an analog clock, the second hand is the skinniest one that is constantly in motion.
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18 cards in set

## Flashcard Content Overview

Fourth grade is full of numerous math terms. This set of flashcards will cover different topics including time, measurement, geometry, multiplication, division, and fractions. The front of each flashcard will include the vocabulary word. The back of each flashcard will include the definition.

Front
Back
Second
A second is a unit used to measure time. There are 60 seconds in 1 minute. On an analog clock, the second hand is the skinniest one that is constantly in motion.
Minute
A minute is a unit used to measure time. A minute is made of 60 seconds. 60 minutes are in 1 hour. On an analog clock, the minute hand is the longest one.
Hour
An hour is a unit used to measure time. An hour is made of 60 minutes. There are 24 hours in 1 day. On an analog clock, the hour hand is the shortest one.
Diameter
The diameter is the distance from one side of an object to the opposite side by measuring through the middle.
Area
The area is the surface of any 2D shape. To find the area you multiply the height by the width.
Circumference
The circumference, for example a circle, is the distance around an object.
Perpendicular
A perpendicular line is when one line meets another line and makes a 90 degree angle. Perpendicular lines may look like the letter 'T'.
Parallel
Parallel lines are two or more lines that are side by side and will never touch.
Line Segment
A line segment is a line where both sides are an end point. A line segment can also be a line that connects two points.
Factor

Factors are two or more numbers that you multiply together in a multiplication problem to produce a new number.

Ex. 3 x 5 or 6 x 7

Product

The product is the answer you get when you multiply two or more numbers together.

Ex. 3 x 5 = 15, 15 is the product.

Multiples

Any number that can be divided by another number evenly.

Ex. 14 / 2 = 7, 14 is a multiple of 2 and 7

Variable

A symbol used for a number not known in a math equation.

Ex. x or a

Consecutive
Numbers that go in order with no missing parts.
Percent

A given number out of one hundred.

Ex. If there are 100 cookies and 38 of those cookies have chocolate chips, then 38% of the cookies are chocolate chip.

Mixed Number

Contains a whole number and a fraction

Ex. 2 ?

Ordinal Numbers

Numbers that tell the order of something

Ex. First, second, third, fourth, etc.

Probability

The chance of something happening, usually written as a ratio

Ex. 1:3, There is a one to three chance of it raining today.

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