7th Grade Math Vocabulary Flashcards
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Questions and Answers

What are vertical angles?

  • Two adjacent angles
  • Two angles formed by intersecting lines (correct)
  • Two angles whose sum is 180 degrees
  • Two angles that share a common ray

    • What is the definition of the rate of change?

    The constant repeated change

    What does it mean to approximate a number?

    To round it to the nearest whole number

    Define scale in mathematics.

    <p>The ratio to either increase or decrease dimensions or sizes</p> Signup and view all the answers

    What is an inverse operation?

    <p>Math operation that 'undoes' the other</p> Signup and view all the answers

    What does it mean to simplify an expression?

    <p>To reduce to simplest form</p> Signup and view all the answers

    What is the value of Pi?

    <p>3.14...</p> Signup and view all the answers

    Define reciprocal in terms of fractions.

    <p>The 'flip' of a fraction</p> Signup and view all the answers

    What are complementary angles?

    <p>Two angles whose sum is exactly 90 degrees</p> Signup and view all the answers

    Define supplementary angles.

    <p>Two angles whose sum is exactly 180 degrees</p> Signup and view all the answers

    What are adjacent angles?

    <p>Two angles that share a common ray</p> Signup and view all the answers

    What is the circumference of a circle?

    <p>The distance around a circle</p> Signup and view all the answers

    What is the radius of a circle?

    <p>Halfway across a circle from the center to a point on the edge</p> Signup and view all the answers

    Define diameter.

    <p>The distance from one edge of a circle, through the center, to the other edge</p> Signup and view all the answers

    What is the range in data sets?

    <p>The difference in the largest and smallest data points in a set</p> Signup and view all the answers

    What is interquartile range?

    <p>The difference in the 3rd and 1st Quartiles in a data set</p> Signup and view all the answers

    Define mean.

    <p>The average of all the data points</p> Signup and view all the answers

    What is the formula for the circumference of a circle?

    <p>C = πd or C = 2πr</p> Signup and view all the answers

    What is the area of a circle?

    <p>A = πr²</p> Signup and view all the answers

    Define composite shape.

    <p>Two-dimensional shape made up of multiple basic shapes</p> Signup and view all the answers

    What is another name for the order of operations?

    <p>PEMDAS</p> Signup and view all the answers

    What is the distributive property?

    <p>It involves multiplying a term outside the parentheses across terms inside the parentheses.</p> Signup and view all the answers

    Dependent probability means two events where the first event does affect the second event.

    <p>True</p> Signup and view all the answers

    Independent probability means the first event does not affect the second event.

    <p>True</p> Signup and view all the answers

    What is the formula for the area of a triangle?

    <p>A = ½bh</p> Signup and view all the answers

    Part = % x 100, the missing word is:

    <p>Whole</p> Signup and view all the answers

    Two equivalent ratios are called a _____ .

    <p>Proportion</p> Signup and view all the answers

    How much it takes to cover a 2D shape is called its ____.

    <p>Area</p> Signup and view all the answers

    How much it takes to cover a 3D figure is called its ____ _____.

    <p>Surface Area</p> Signup and view all the answers

    How much it takes to fill up a 3D figure is called its ______.

    <p>Volume</p> Signup and view all the answers

    When solving inequalities, what must you do when you divide or multiply by a negative?

    <p>Flip the inequality</p> Signup and view all the answers

    The letter that is in expressions and equations is called a ___.

    <p>Variable</p> Signup and view all the answers

    In equations and expressions, the number by itself is called the _____.

    <p>Constant</p> Signup and view all the answers

    In equations and expressions, the number being multiplied to the variable is called the _____.

    <p>Coefficient</p> Signup and view all the answers

    What is sales tax?

    <p>A percent of anything you buy that is added onto the cost</p> Signup and view all the answers

    What is a tip in restaurant terms?

    <p>A percentage of your bill that you pay to the server for their service</p> Signup and view all the answers

    Define probability.

    <p>How likely or unlikely an event is.</p> Signup and view all the answers

    What is theoretical probability?

    <p>Probability based on mathematical reasoning</p> Signup and view all the answers

    Define experimental probability.

    <p>Probability calculated from observation.</p> Signup and view all the answers

    What is a dot plot?

    <p>A diagram of a data set plotted on a number line.</p> Signup and view all the answers

    What does 'spread' in statistics refer to?

    <p>Measures of the numbers in a data set relative to the center.</p> Signup and view all the answers

    What is the formula for finding the constant of proportionality?

    <p>K = y/x</p> Signup and view all the answers

    What is the formula for the area of a rectangle?

    <p>A = bh</p> Signup and view all the answers

    What is the formula for the area of a trapezoid?

    <p>A = ((b1 + b2)h)/2</p> Signup and view all the answers

    What is a percent?

    <p>A part-to-whole ratio with a whole of 100</p> Signup and view all the answers

    Define ratio.

    <p>A comparison of two quantities.</p> Signup and view all the answers

    What is simple interest?

    <p>A percentage of the original amount</p> Signup and view all the answers

    What is absolute value?

    <p>A number's distance from zero</p> Signup and view all the answers

    Define base in relation to shapes.

    <p>The bottom of a shape, solid, or three-dimensional object</p> Signup and view all the answers

    What is the base in terms of exponents?

    <p>The number that gets multiplied when using an exponent.</p> Signup and view all the answers

    What is a coordinate plane?

    <p>The plane containing the 'x' axis and 'y' axis.</p> Signup and view all the answers

    What is the denominator in a fraction?

    <p>The bottom number in a fraction</p> Signup and view all the answers

    What is the difference in mathematics?

    <p>The result of subtracting one number from another</p> Signup and view all the answers

    Define distance in math.

    <p>Length, a measurement of how far through space</p> Signup and view all the answers

    What is a terminating decimal?

    <p>A decimal whose digits end, can be written as a fraction with a power of 10 denominator</p> Signup and view all the answers

    What is a dividend?

    <p>The amount that you want to divide up</p> Signup and view all the answers

    What is a divisor?

    <p>The number we divide by</p> Signup and view all the answers

    Define equation.

    <p>A statement that two expressions are equal in value</p> Signup and view all the answers

    What does equivalent mean?

    <p>Equal in value</p> Signup and view all the answers

    What is an exponent?

    <p>The number of times a number is multiplied by itself</p> Signup and view all the answers

    Define expression.

    <p>A group of terms and operators.</p> Signup and view all the answers

    What is a factor?

    <p>Numbers we can multiply together to get another number</p> Signup and view all the answers

    What is a face in geometry?

    <p>Any of the individual flat surfaces of a solid object</p> Signup and view all the answers

    Greater than is represented by the symbol '>'.

    <p>True</p> Signup and view all the answers

    Less than is represented by the symbol '<'.

    <p>True</p> Signup and view all the answers

    Define horizontal.

    <p>Going side-to-side, like the horizon</p> Signup and view all the answers

    What is an inequality?

    <p>Compares two values, showing if one is less than, greater than, or simply not equal to another value</p> Signup and view all the answers

    What is an integer?

    <p>Positive and negative whole numbers</p> Signup and view all the answers

    What are like terms?

    <p>Terms that have the same exponent to the same power.</p> Signup and view all the answers

    What does mean refer to in statistics?

    <p>Average</p> Signup and view all the answers

    Define median.

    <p>Middle number in a set of data</p> Signup and view all the answers

    What is mode in statistics?

    <p>Number that shows up the most in a set of data</p> Signup and view all the answers

    Define biased sample.

    <p>A sample drawn in a way that one or more parts of the population are favored over others</p> Signup and view all the answers

    What is a multiple?

    <p>The result of multiplying a number by an integer</p> Signup and view all the answers

    What are nets in geometry?

    <p>A two-dimensional model of a three-dimensional solid.</p> Signup and view all the answers

    What is a number line?

    <p>A diagram of numbers in order on a horizontal or vertical line.</p> Signup and view all the answers

    Define numerator.

    <p>The top number in a fraction</p> Signup and view all the answers

    What does non-proportional mean?

    <p>When the ratio of y/x is not constant</p> Signup and view all the answers

    What is an ordered pair?

    <p>Two numbers written in parentheses which show the position on a graph.</p> Signup and view all the answers

    What is the origin in a graph?

    <p>Where the x-axis and y-axis cross</p> Signup and view all the answers

    What does parallel mean?

    <p>Always the same distance apart and never touching</p> Signup and view all the answers

    Define perimeter.

    <p>Distance around the outside of a shape.</p> Signup and view all the answers

    What does perpendicular mean?

    <p>Lines that meet at right angles (90°).</p> Signup and view all the answers

    Define prism.

    <p>A solid object with two identical ends and flat sides.</p> Signup and view all the answers

    What is a product in terms of multiplication?

    <p>The answer when two or more values are multiplied together</p> Signup and view all the answers

    Define a pyramid in geometry.

    <p>A solid object with triangle sides, an apex, and a polygon base.</p> Signup and view all the answers

    What is a quadrant?

    <p>The four areas created by the x-axis and the y-axis on the coordinate plane.</p> Signup and view all the answers

    What is a quartile?

    <p>The values that divide a list of numbers into quarters.</p> Signup and view all the answers

    What does quotient mean?

    <p>The answer to a division problem.</p> Signup and view all the answers

    What is range?

    <p>The difference between the lowest and highest values</p> Signup and view all the answers

    What is a rate?

    <p>A ratio of quantities in different units.</p> Signup and view all the answers

    What is substitution?

    <p>Putting values in place of a variable.</p> Signup and view all the answers

    What is the sum?

    <p>The result of adding two or more numbers.</p> Signup and view all the answers

    What is a term in math?

    <p>A constant, variable, or a coefficient together with a variable.</p> Signup and view all the answers

    What is a unit rate?

    <p>A rate with a denominator of one</p> Signup and view all the answers

    Define vertex in geometry.

    <p>A point where two or more line segments meet.</p> Signup and view all the answers

    What does vertical mean?

    <p>Up and down.</p> Signup and view all the answers

    What is the y-axis?

    <p>The line on a graph that runs vertically (up-down) through zero.</p> Signup and view all the answers

    What does the x-axis represent?

    <p>The line on a graph that runs horizontally (left-right) through zero.</p> Signup and view all the answers

    What is a straight angle?

    <p>An angle that measures exactly 180°</p> Signup and view all the answers

    Study Notes

    Geometry Vocabulary

    • Vertical Angles: Formed by intersecting lines; they are congruent.
    • Complementary Angles: Two angles with a sum of 90 degrees.
    • Supplementary Angles: Two angles whose measures add up to 180 degrees.
    • Adjacent Angles: Share a common ray, positioned side by side.
    • Circumference: Total distance around a circle, calculated with the formula (C = πd) or (C = 2πr).
    • Radius: Distance from the center to the edge of a circle.
    • Diameter: Distance across a circle through the center.
    • Area of a Circle: Calculated using (A = πr^2).

    Measurement and Data

    • Range: Difference between the largest and smallest data points in a set.
    • Interquartile Range: Difference between the 3rd and 1st quartiles in a data set.
    • Mean: Average value of data points, found by summing all points and dividing by the total number.
    • Median: Middle value in a sorted data set.
    • Mode: Most frequently occurring number in a data set.
    • Surface Area: Total area covering a 3D figure.

    Algebra and Operations

    • Rate of Change: Constant change in a given quantity.
    • Simplify: Reducing expressions to their simplest form.
    • Order of Operations: Follow PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction).
    • Distributive Property: (a(b + c) = ab + ac) illustrates multiplication across addition.
    • Inverse Operation: Operation that reverses another (e.g., addition vs. subtraction).
    • Variable: Symbol representing an unknown value in equations.

    Probability and Ratios

    • Dependent Probability: Outcomes of two events where the first affects the second.
    • Independent Probability: Outcomes of two events where the first does not affect the second.
    • Percent: A ratio expressed as a fraction of 100; part-to-whole comparison.

    Shape and Function Vocabulary

    • Composite Shape: A 2D shape formed from multiple basic geometric shapes.
    • Prism: A solid shape with parallel, congruent bases connected by rectangular faces.
    • Pyramid: A solid shape with a polygon base and triangular sides meeting at an apex.

    Graphing and Coordinate Geometry

    • Coordinate Plane: Formed by the intersection of the x-axis (horizontal) and y-axis (vertical).
    • Ordered Pair: A pair of numbers (x, y) indicating a point's position on a graph.
    • Quadrant: One of the four sections in the coordinate plane.

    Finance and Practical Applications

    • Sales Tax: A percentage added to the cost of goods purchased.
    • Tip: A percentage of the bill given as a reward for service, primarily in restaurants.
    • Simple Interest: A percentage of the principal amount over time.

    Miscellaneous Terms

    • Absolute Value: The distance of a number from zero on the number line.
    • Integer: Whole numbers that can be positive, negative, or zero.
    • Difference: Result of subtracting one number from another.
    • Product: Result from multiplying two or more numbers.
    • Quotient: Result of dividing one number by another.

    Shapes and Angles

    • Straight Angle: Measures exactly 180 degrees.
    • Perpendicular Lines: Lines meeting at right angles (90 degrees).
    • Parallel Lines: Lines that run the same distance apart and never converge.

    These notes outline key concepts and definitions that are essential for understanding 7th-grade math vocabulary and related topics.

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    Test your knowledge of essential 7th grade math vocabulary with these flashcards. Each card features a key term along with its definition, helping you enhance your understanding of important concepts. Perfect for students looking to improve their math terminology skills.

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