Online Pre-Algebra Tutoring and Homework Help

18.Graphing and Writing Integers

• 18.1 Graphing Integers on a Number Line
• 18.2 Writing Integers that Describe Situations

19.Comparing Integers

• 19.1 Comparing Positive and Negative Integers
• 19.2 Comparing Two Negative Integers
• 19.3 Writing Integers from Least to Greatest

20.Opposites and Absolute Value

• 20.1 Opposites
• 20.2 Absolute Value of Integers

21.Adding Integers

• 21.1 Adding Two Integers
• 21.2 Adding Two Integers with Expanded Number Line
• 21.3 Adding Three Integers

22.Subtracting Integers

• 22.1 Subtracting Two Integers
• 22.2 Minus a Negative
• 22.3 Subtracting Three Integers

23.Multiplying Integers

• 23.1 Multiplying Two Integers
• 23.2 Multiplying Three or Four Integers
• 23.3 Negative Number Cubed

24.Dividing Integers

• 24.1 Dividing Two Integers
• 24.2 Dividing Integer by Zero or Zero by Integer

25.Order of Operations with Integers

• 25.1 Order of Operations with Integers (PEMDAS)
• 25.2 Order of Operations with Integers (Minus a Negative)

26.Integer Word Problems

• 26.1 Comparing Integers Word Problems
• 26.2 Adding Integers Word Problems
• 26.3 Subtracting Integers Word Problems

27.Absolute Value with Addition and Subtraction

• 27.1 Absolute Value with Addition and Subtraction (One Term Inside)
• 27.2 Absolute Value with Addition and Subtraction (Two Terms Inside)
• 27.3 Absolute Value with Addition and Subtraction (Two Absolute Values)

28.Absolute Value with Multiplication and Division

• 28.1 Absolute Value with Multiplication
• 28.2 Absolute Value with Division

29.Divisibility Rules

• 29.1 Divisible by 2; 5 or 10; 3 or 9, and 6
• 29.2 Divisible by 2, 3, 5, 6 , 9, 20

30.Factors and Primes

• 30.1 Numbers with 3 or 4 Factors
• 30.2 Prime Numbers
• 30.3 Numbers with More Than 4 Factors

31.Prime Factorization

• 31.1 Prime Factorization of Composite Number
• 31.2 Prime Factorization of Composite Number (More Than 2 Factors)
• 31.3 Prime Factorization of Prime Number

32.Multiples and Least Common Multiple

• 32.1 Multiples
• 32.2 Least Common Multiple (i.e. 9 and 18)
• 32.3 Least Common Multiple (i.e. 6 and 8)
• 32.4 Least Common Multiple (i.e. 3 and 7)
• 32.5 Least Common Multiple of Three Numbers

33.Greatest Common Factor

• 33.1 GCF is the Only Common Factor
• 33.2 GCF is 1
• 33.3 GCF is Not the Only Common Factor
• 33.4 GCF of Three Numbers

34.Introduction to Fractions

• 34.1 Numerator and Denominator
• 34.2 Write Fraction Representing Shaded Part of Figure

35.Equivalent Fractions (Part I)

• 35.1 Diagrams of Equivalent Fractions
• 35.2 Equivalent Fractions with Missing Denominator
• 35.3 Equivalent Fractions with Missing Numerator
• 35.4 Diagrams of Equivalent Fractions (Advanced)

36.Reducing Fractions to Lowest Terms

• 36.1 Reducing Fractions (One Common Factor)
• 36.2 Reducing Fractions (No Common Factor)
• 36.3 Reducing Fractions (Two Common Factors)

37.Equivalent Fractions (Part II)

• 37.1 Equivalent Fractions (Reduce One Fraction)
• 37.2 Equivalent Fractions (Reduce Both Fractions)
• 37.3 Find 3 Fractions Equivalent to Fraction in Lowest Terms
• 37.4 Find 3 Fractions Equivalent to Fraction Not in Lowest Terms
• 37.5 Why Can You Multiply Numerator and Denominator by Same Number?

38.Improper Fractions and Mixed Numbers

• 38.1 Improper Fractions and Mixed Numbers Vocabulary
• 38.2 Convert Improper Fraction to Mixed Number
• 38.3 Convert Improper Fraction to Whole Number
• 38.4 Convert Mixed Number to Improper Fraction

39.Comparing Proper Fractions

• 39.1 Review of Least Common Multiple
• 39.2 Comparing Fractions with Same Denominator
• 39.3 Comparing Fractions with Different Denominators (Only Change One)
• 39.4 Comparing Fractions with Different Denominators (Change Both)
• 39.5 Comparing Fractions (i.e. 1/3 and 1/5)
• 39.6 Order Fractions from Least to Greatest

40.Comparing Mixed Numbers and Improper Fractions

• 40.1 Compare Mixed Numbers (Different Whole Numbers)
• 40.2 Comparing Mixed Numbers (Same Whole Number)
• 40.3 Comparing Improper Fractions
• 40.4 Review of Converting a Mixed Number to an Improper Fraction
• 40.5 Comparing a Mixed Number to an Improper Fraction
• 40.6 Order Mixed Numbers and Improper Fractions from Least to Greatest

41.Comparing Fractions Word Problems

• 41.1 Comparing Fractions with Same Denominator Word Problems
• 41.2 Comparing Fractions with Different Denominators Word Problems
• 41.3 Comparing Mixed Numbers Word Problems
• 41.4 Order Fractions from Least to Greatest Word Problems
• 41.5 What Number is Halfway Between 1/5 and 1/3?

42.Adding and Subtracting Like Fractions

• 42.1 Adding and Subtracting Like Fractions (Do Not Need to Reduce)
• 42.2 Adding and Subtracting Like Fractions (Reduce)
• 42.3 Adding and Subtracting Like Fractions (Change Answer to Mixed Number)
• 42.4 Adding and Subtracting Like Fractions (Change Answer to Mixed Number and Reduce)

43.Adding and Subtracting Unlike Fractions

• 43.1 Adding Unlike Fractions
• 43.2 Subtracting Unlike Fractions
• 43.3 Adding and Subtracting Unlike Fractions (Change Answer to Mixed Number)
• 43.4 Adding and Subtracting Unlike Fractions (Reduce)
• 43.5 Adding Three Unlike Fractions

44.Adding Mixed Numbers

• 44.1 Adding Mixed Numbers with Like Fractions
• 44.2 Adding Whole Number and Mixed Number
• 44.3 Adding Mixed Numbers with Like Fractions (Go up a Number)
• 44.4 Adding Mixed Numbers with Unlike Fractions
• 44.5 Adding Mixed Numbers with Unlike Fractions (Go up a Number)

45.Subtracting Mixed Numbers

• 45.1 Subtracting Mixed Numbers with Like Fractions
• 45.2 Subtracting Mixed Numbers with Unlike Fractions
• 45.3 Subtracting Mixed Numbers with Like Fractions (Go Down a Number)
• 45.4 Whole Number Minus Mixed Number

46.Multiplying Fractions

• 46.1 Multiplying Fractions
• 46.2 Multiplying Whole Number and Fraction
• 46.3 Multiplying Fractions with Single Cross-Canceling
• 46.4 Multiplying Whole Number and Fraction with Single Cross-Canceling
• 46.5 Multiplying Fractions with Double Cross-Canceling
• 46.6 Fraction Cubed

47.Multiplying Mixed Numbers

• 47.1 Review of Converting a Mixed Number to an Improper Fraction
• 47.2 Review of Converting an Improper Fraction to a Mixed Number
• 47.3 Multiplying Mixed Numbers
• 47.4 Multiplying Mixed Number and Whole Number
• 47.5 Multiplying Mixed Number and Fraction with Cross-Canceling
• 47.6 Multiplying Mixed Numbers with Cross-Canceling (Answer is Whole Number)
• 47.7 Multiplying Mixed Numbers with Cross-Canceling

48.Dividing Fractions

• 48.1 Dividing Fractions
• 48.2 Dividing Fraction by Whole Number
• 48.3 Dividing Whole Number by Fraction
• 48.4 Dividing Fractions with Cross-Canceling
• 48.5 Dividing Fractions with Cross-Canceling (Change Answer to Mixed Number)

49.Dividing Mixed Numbers

• 49.1 Dividing Mixed Numbers with Cross-Canceling (Answer is Fraction)
• 49.2 Dividing Mixed Numbers

50.Understanding Decimals

• 50.1 Determine Place Value of Underlined Digit in Decimal
• 50.2 Write a Decimal Represented by the Model

51.Converting Decimals to Fractions

• 51.1 Convert Decimal to Fraction and Reduce
• 51.2 Convert Decimal to Mixed Number or Fraction

52.Converting Fractions to Decimals

• 52.1 Convert Mixed Number or Fraction to Decimal
• 52.2 Convert Mixed Number or Fraction to Decimal (Advanced)
• 52.3 Convert Fraction to Decimal (Change Denominator to 10)
• 52.4 Convert Fraction to Decimal (Change Denominator to 100)
• 52.5 Convert Improper Fraction to Decimal

53.Comparing Decimals

• 53.1 Comparing Decimals with Same Number of Places
• 53.2 Comparing Decimals (i.e. 6.3 and 6.03)
• 53.3 Comparing Decimals (i.e. 0.805 and 0.81)
• 53.4 Comparing Decimals (i.e. 0.70 and 0.7000)
• 53.5 Convert Fraction to Decimal then Compare Decimals

54.Rounding Decimals

• 54.1 Rounding Decimals to an Underlined Place
• 54.2 Rounding Decimals to a Place Stated in Words

55.Decimal Word Problems

• 55.1 Writing Words as a Decimal
• 55.2 Writing Decimals from Least to Greatest
• 55.3 Rounding Decimals
• 55.4 Name Rounding Place if 8.47 Rounded Up and Down

56.Estimating Sums and Differences of Decimals

• 56.1 Estimating Sums and Differences of Decimals
• 56.2 Estimating Sums and Differences with Dollars

57.Adding Decimals

• 57.1 Adding Decimals (Vertical Addition and No Carrying)
• 57.2 Adding Decimals (Lining up Decimals and Carrying)
• 57.3 Adding Decimals (Lining up Decimals)
• 57.4 Adding Decimals (Dollars)

58.Subtracting Decimals

• 58.1 Subtracting Decimals (Vertical Subtraction and No Borrowing)
• 58.2 Subtracting Decimals (Lining up Decimals and Borrowing)
• 58.3 Subtracting Decimals (Lining up Decimals)
• 58.4 Whole Number Minus Decimal
• 58.5 How Much More than $457.29 is $500?

59.Adding and Subtracting Decimals Word Problems

• 59.1 Adding Decimals Word Problems
• 59.2 Subtracting Decimals Word Problems
• 59.3 Estimating with Decimals Word Problems

60.Multiplying Decimals by Whole Numbers

• 60.1 Multiplying Decimal by 1-Digit Whole Number
• 60.2 Multiplying Decimal by 2-Digit Whole Number
• 60.3 Rule for Multiplying Decimal by 10, 100, 1000, etc.

61.Multiplying Decimals by Decimals

• 61.1 Multiplying Decimals by Decimals
• 61.2 Multiplying Decimals by Decimals (Rearrange)
• 61.3 Multiplying by 0.0001 or 0.0002
• 61.4 Rule for Multiplying Decimal by 0.1, 0.01, 0.001, etc.

62.Dividing Decimals by Whole Numbers

• 62.1 Dividing Decimals by Whole Numbers
• 62.2 Dividing Decimals by Whole Numbers (Fill Missing Places in Answer with Zeros)
• 62.3 Dividing Decimals by Whole Numbers (Add Zeros to Right to Keep Going)
• 62.4 Rule for Dividing Decimal by 10, 100, 1000, etc.

63.Dividing Decimals by Decimals

• 63.1 Dividing Decimals by Decimals (Introduction)
• 63.2 Dividing Decimals by Decimals (Division Symbol)
• 63.3 Dividing Decimals by Decimals (Division Box)
• 63.4 Can We Multiply Both Decimals by 10 if Multiplying?

64.Multiplying and Dividing Decimals Word Problems

• 64.1 Divide Decimal by Whole Number Word Problems
• 64.2 Multiply Decimal by Whole Number Word Problems
• 64.3 Multiplying Decimals by Decimals Word Problems
• 64.4 Divide Decimal by Whole Number Word Problems
• 64.5 Multiply Decimal by Whole Number Word Problems (Advanced)

65.Powers of 10

• 65.1 Powers of 10
• 65.2 Write Positive Power of 10 in Standard Form
• 65.3 Write Negative Power of 10 in Standard Form
• 65.4 Write Large Number as Power of 10
• 65.5 Write Small Decimal as Power of 10
• 65.6 Write Fraction as Power of 10
• 65.7 Write 1 as Power of 10

66.Converting from Scientific to Standard Notation

• 66.1 Scientific Notation
• 66.2 Convert Scientific Notation with Positive Exponent to Standard Notation
• 66.3 Convert Scientific Notation with Negative Exponent to Standard Notation
• 66.4 Write 6.24 x 10^0 in Standard Notation

67.Converting from Standard to Scientific Notation

• 67.1 Convert a Large Number in Standard Notation to Scientific Notation
• 67.2 Convert a Small Decimal in Standard Notation to Scientific Notation
• 67.3 Write a Fraction in Scientific Notation

68.Terminating and Repeating Decimals

• 68.1 Bar Notation
• 68.2 Write Fraction as Decimal (Terminates)
• 68.3 Write Fraction as Decimal (Repeats)
• 68.4 Write 2/7 as Decimal

69.Determining if a Number is Rational or Irrational

• 69.1 Determining if a Number is Rational or Irrational

70.Patterns with Whole Numbers

• 70.1 Patterns with Addition and Multiplication
• 70.2 Patterns with Subtraction and Division
• 70.3 Pattern with Subtraction that Involves Integers

71.Patterns with Fractions, Decimals, and Integers

• 71.1 Patterns with Mixed Numbers
• 71.2 Patterns with Decimals
• 71.3 Patterns with Integers
• 71.4 Patterns with Division that Include Fractions
• 71.5 Patterns with Fractions with Different Denominators

72.Advanced Patterns

• 72.1 Patterns with Figures
• 72.2 Patterns with Increasing Intervals
• 72.3 Patterns with Alternating Intervals
• 72.4 Patterns with Letters
• 72.5 Fibonacci Sequence

73.Pattern Word Problems

• 73.1 Addition and Subtraction Pattern Word Problems
• 73.2 Addition and Subtraction Pattern Word Problems (Decimals, Price, Time)
• 73.3 Multiplication Pattern Word Problems
• 73.4 Division Pattern Word Problem

74.Evaluating Expressions

• 74.1 Evaluating Expressions Given One Variable
• 74.2 Evaluating Expressions Given Two or More Variables
• 74.3 Evaluating Expressions Using Order of Operations

75.Combining Like Terms

• 75.1 Combining Like Terms (One Variable)
• 75.2 Combining Like Terms (Two Variables)
• 75.3 Combining Like Terms (Variable and Constant)
• 75.4 Combining Like Terms (Exponents)

76.Distributive Property

• 76.1 Explanation of Distributive Property
• 76.2 Basic Distributive Property
• 76.3 Distributing with a Positive Outside Parentheses
• 76.4 Distributing with a Negative Outside Parentheses
• 76.5 Distributing with Just a Negative Sign Outside Parentheses
• 76.6 Distributing with Simplifying Inside Parentheses First
• 76.7 Distributing with x Times x

77.Modeling Expressions

• 77.1 Modeling Expressions with Addition and Subtraction
• 77.2 Modeling Expressions with Addition and Subtraction (Trick)
• 77.3 Modeling Expressions with Multiplication
• 77.4 Modeling Expressions with 3 People and Addition
• 77.5 Modeling Expressions with 3 People and Subtraction
• 77.6 Modeling Expressions with Consecutive Even Integers

78.Introduction to Equations

• 78.1 Modeling One-Step Equations
• 78.2 Determine if Given Value is Solution to One-Step Equation
• 78.3 Determine if Given Value is Solution to Multi-Step Equation

79.One-Step Addition Equations

• 79.1 One-Step Addition Equations with Variable on Left
• 79.2 One-Step Addition Equations with Variable on Right
• 79.3 One-Step Addition Equations with Integers
• 79.4 One-Step Addition Equations with Fractions and Mixed Numbers
• 79.5 One-Step Addition Equations with Decimals
• 79.6 One-Step Addition Equations with Simplifying First

80.One-Step Subtraction Equations

• 80.1 One-Step Subtraction Equations with Variable on Left
• 80.2 One-Step Subtraction Equations with Variable on Right and/or Integers
• 80.3 One-Step Subtraction Equations with Fractions
• 80.4 One-Step Subtraction Equations with Decimals

81.One-Step Multiplication Equations

• 81.1 One-Step Multiplication Equations with Variable on Right and/or Integers
• 81.2 One-Step Multiplication Equations (Multiply by Reciprocal)
• 81.3 One-Step Multiplication Equations (End up with Fraction that Reduces)

82.One-Step Division Equations

• 82.1 One-Step Division Equations with Variable on Left
• 82.2 One-Step Division Equations with Variable on Left and Division Symbol
• 82.3 One-Step Division Equations with Variable on Right and/or Integers
• 82.4 One-Step Division Equations with Variable on Right and Division Symbol

83.Writing and Solving One-Step Equations

• 83.1 Keywords
• 83.2 Writing One-Step Equations (Sum or Difference)
• 83.3 Writing One-Step Equations (Product or Quotient)
• 83.4 Writing One-Step Equations (Less Than or More Than)
• 83.5 Writing One-Step Equations (Sum with 3 People)

84.Two-Step Equations

• 84.1 Two-Step Equations with Variable on Left
• 84.2 Two-Step Equations with Variable on Right
• 84.3 Two-Step Equations with Negative Coefficient Trick
• 84.4 Two-Step Equations with Fraction Coefficient

85.Equations with Variable on Both Sides

• 85.1 Equations with Variable on Both Sides (Put Variables together on Left)
• 85.2 Equations with Variable on Both Sides (Put Variables together on Right)
• 85.3 Equations with Variable on Both Sides (Put Variables together on Left and Numbers together on Right)
• 85.4 Equations with Variable on Both Sides (Put Variables together on Right and Numbers together on Left)
• 85.5 Equations with Variable on Both Sides (No Solution)

86.Equations with the Distributive Property

• 86.1 Equations with Distributive and Variable on Left
• 86.2 Equations with Distributive and Variable on Left (Additional Simplifying on Left)
• 86.3 Equations with Distributive and Variable on Right (Additional Simplifying on Right)
• 86.4 Equations with Distributive Twice on Left and Negative Outside Parentheses

87.Writing and Solving Multi-Step Equations

• 87.1 Increased and Decreased
• 87.2 Writing Multi-Step Equations (Subracted From and Added To)
• 87.3 Writing Multi-Step Equations (Sum and Difference)
• 87.4 Writing Multi-Step Equations (Less Than with Distributive)
• 87.5 Writing Multi-Step Equations (Less Than with Fraction)
• 87.6 Writing Multi-Step Equations (Variable on Both Sides)

88.Introduction to Inequalities

• 88.1 Inequality Symbols
• 88.2 State Two Solutions to Given Inequality
• 88.3 Determine if Given Number is Solution to Inequality
• 88.4 Determine if Given Number is Solution to Inequality (Variable on Right)
• 88.5 Determine if Given Decimal is Solution to Inequality

89.One-Step Inequalities

• 89.1 One-Step Inequalities with Variable on Left
• 89.2 One-Step Inequalities with Variable on Right
• 89.3 Writing and Solving One-Step Inequalities

90.Introduction to Ratios

• 90.1 Use Picture to Write Ratio
• 90.2 Use Word Problem to Write Ratio
• 90.3 Given Total and One of Parts and Write Ratio of Parts

91.Equal Ratios

• 91.1 Find Two Ratios Equal to Given Ratio
• 91.2 Find Two Ratios Equal to Given Ratio (Reduce First)
• 91.3 Determine Whether Given Ratios are Equal

92.Unit Rate

• 92.1 Unit Rate
• 92.2 Unit Rate (and Answer Question)

93.Unit Price

• 93.1 Unit Price (Divide Decimal by Whole Number)
• 93.2 Unit Price to Find Which Item is Better Buy

94.Introduction to Proportion

• 94.1 Determine if Ratios Form a Proportion
• 94.2 Determine if Ratios Form a Proportion (Decimals)
• 94.3 Determine if Ratios Form a Proportion (Units)
• 94.4 Determine if Ratios Form a Proportion (Word Problem)

95.Solving Proportions

• 95.1 Solving Proportions
• 95.2 Solving Proportions (Answer is Decimal)

96.Proportion Word Problems

• 96.1 Proportion Word Problems
• 96.2 Proportion Word Problems (Decimals)

97.Understanding Percents

• 97.1 Write a Ratio as a Percent
• 97.2 Write Percent that Represents Shaded Part of Figure
• 97.3 Write Fraction, Decimal, Percent that Represents Shaded Part of Figure

98.Fractions and Percents

• 98.1 Percent to Fraction (i.e. 75%)
• 98.2 Percent to Fraction (i.e. 235%)
• 98.3 Percent to Fraction (i.e. 12.5%)
• 98.4 Fraction to Percent (i.e. 3/20)
• 98.5 Fraction to Percent (i.e. 1/3)
• 98.6 Mixed Number to Percent

99.Decimals and Percents

• 99.1 Percent to Decimal (i.e. 46%)
• 99.2 Percent to Decimal (i.e. 2%)
• 99.3 Percent to Decimal (i.e. 0.75%)
• 99.4 Decimal to Percent (i.e. 0.83)
• 99.5 Decimal to Percent (i.e. 3.021)

100.Percent of a Number

• 100.1 Find X% of Y
• 100.2 Find X% of Y (Single-Digit Percent)
• 100.3 Find X% of Y (Triple-Digit Percent)
• 100.4 Find X% of Y (Decimal Percent)
• 100.5 Find X% of Y (Price)
• 100.6 Find X% of Y (Trick)

101.Percent One Number is of Another

• 101.1 X is What Percent of Y
• 101.2 What Percent of Y is X
• 101.3 What Percent of Y is X (Repeating Decimal)
• 101.4 X is What Percent of Y (Repeating Decimal)

102.Using Percent to Find a Number

• 102.1 X is Y% of What Number
• 102.2 X is Y% of What Number (Single-Digit Percent)
• 102.3 X is Y% of What Number (Decimal Percent)
• 102.4 Y% of What Number is X
• 102.5 X is Y% of What Amount (Price)
• 102.6 X is Y% of What Number (Repeating Percent)

103.Percent Increase or Decrease

• 103.1 Percent Decrease
• 103.2 Percent Increase

104.Discount

• 104.1 Find Amount of Discount and Sales Price
• 104.2 Find Amount of Discount
• 104.3 Find Rate of Discount
• 104.4 Find Sales Price (Discounted Twice)

105.Sales Tax

• 105.1 Find Amount of Tax and Total Price with Tax
• 105.2 Find Amount of Tax and Total Price with Tax (Multiple Items)
• 105.3 Find Sales Tax Rate
• 105.4 Find Original Price

106.Interest

• 106.1 Interest Formula
• 106.2 How Much Interest is Earned
• 106.3 What is the Interest Rate
• 106.4 How Much Principle Must Be Invested
• 106.5 How Long Must It Be Invested

107.Points, Lines, Segments, and Rays

• 107.1 Writing Names for Points, Lines, Segments and Rays
• 107.2 Drawing Points, Lines, Segments and Rays

108.Classifying Lines

• 108.1 Parallel, Perpendicular, and Intersecting Lines
• 108.2 Name the Line that is Parallel to a Given Line
• 108.3 Name the Line that is Perpendicular to a Given Line
• 108.4 Name a Line that Intersects a Given Line
• 108.5 Name Two or More Lines that Intersect at a Point
• 108.6 Draw Three Lines that Intersect at 0, 1, 2, or 3 Points

109.Angles

• 109.1 Write Three Names for a Given Angle
• 109.2 Name the Vertex and Sides of a Given Angle
• 109.3 Classify an Angle as Acute, Obtuse, Right, or Straight
• 109.4 Angles and Perpendicular, Parallel, and Intersecting Lines

110.Measuring Angles

• 110.1
• 110.2 Name, Measure, and Classify a Given Angle
• 110.3 Measure and Classify an Angle Formed by a Clock

111.Complementary and Supplementary Angles

• 111.1 Complementary, Supplementary, or Neither
• 111.2 Formulas for Finding Complement and Supplement
• 111.3 Find the Complement and Supplement of an Angle

112.Angles of a Triangle

• 112.1 Classify Triangle as Acute, Obtuse, or Right (Picture)
• 112.2 Classify Triangle as Acute, Obtuse, or Right (Angles)
• 112.3 Find Missing Angle in a Triangle
• 112.4 Find Missing Angle in a Triangle (No Picture)
• 112.5 Determine if Given Angles Can Form a Triangle

113.Sides of a Triangle

• 113.1 Classify Triangle as Scalene, Equilateral, or Isosceles
• 113.2 Determine if Side Lengths Can Form a Triangle
• 113.3 Sketching Triangles (i.e. Scalene Obtuse Triangle)

114.Polygons

• 114.1 Determine if Polygon and Name Polygon

115.Quadrilaterals

• 115.1 Parallel Lines
• 115.2 Classify Quadrilateral (Given Picture)
• 115.3 Drawing Quadrilaterals (i.e. Parallelogram that is not a Rhombus)

116.Circles

• 116.1 Circle Vocabulary
• 116.2 Find Segment Lengths Using Radius and Diameter
• 116.3 Find Central Angles Using Sum of 360 Degrees
• 116.4 Find Central Angle Using Semicircle

117.Classifying 3-Dimensional Figures

• 117.1 Classifying 3-Dimensional Figures

118.Nets

• 118.1 Which 3-Dimensional Figure Can Be Formed from Net?
• 118.2 Can Given Net Be Used to Form a Cube?
• 118.3 Draw a Net for a Pentagonal Prism

119.Perspective Drawings

• 119.1 Top, Front, and Side Views of a Given Block-Constructed Figure
• 119.2 Top, Front, and Side Views of a Given Object
• 119.3 Draw a Block-Constructed Figure Given Top, Front, and Side Views

120.Congruent Figures

• 120.1 Congruent Quadrilaterals
• 120.2 Congruent Triangles
• 120.3 Triangle Congruence Statement
• 120.4 Which Figures are Congruent?

121.Similar Figures

• 121.1 Are Given Polygons Congruent, Similar, or Neither?
• 121.2 Use Similar Figures to Answer Questions
• 121.3 Similar Figures and Triangle Sum Theorem

122.Problem Solving with Similar Figures

• 122.1 Find Value of X Using Proportions
• 122.2 Find Value of X Using Proportions (Twisted Figures)
• 122.3 Find Value of X Using Proportions (i.e. Landscapes)

123.Symmetry

• 123.1 Determined if Dashed Line is a Line of Symmetry
• 123.2 Determine if Figure is Symmetric and Draw Lines of Symmetry
• 123.3 Complete Picture so that Figure is Symmetric

124.The Coordinate Grid

• 124.1 The Coordinate Grid (Origin, Axes, Quadrants, Ordered Pair)
• 124.2 Give the Coordinates of a Point on a Graph
• 124.3 Plot a Point Given its Coordinates
• 124.4 Plot a Point Given its Coordinates and Name Quadrant

125.Relations and Functions

• 125.1 Domain and Range
• 125.2 Function
• 125.3 Given Ordered Pairs, State Domain and Range and Determine if Function
• 125.4 Vertical Line Test to Determine if Function (Given Graph)
• 125.5 Vertical Line Test to Determine if Function (Given Ordered Pairs)

126.Evaluating and Graphing Functions

• 126.1 Function Notation
• 126.2 Evaluating Functions: i.e. If f(x) = 6x + 5, find f(0) and f(-5)
• 126.3 Create a T-Chart for a Given Function and Graph
• 126.4 Create a T-Chart for a Given Function and Graph (Parabola)

127.Transformations

• 127.1 Name the Transformation Shown (Translation, Rotation, Reflection, etc.)
• 127.2 No Transformation

128.Reflections

• 128.1 Name the Figure that Represents a Rotation over the x-axis or y-axis
• 128.2 Reflect a Given Figure over the x-axis or y-axis
• 128.3 Reflect a Given Figure over Line A or Line B
• 128.4 Reflections of Capital Letters

129.Translations

• 129.1 Describe the Given Translation
• 129.2 Translate the Given Figure
• 129.3 Reflect and Translate a Given Figure

130.Rotations

• 130.1 Clockwise, Counterclockwise, 360, 180, 90, and 45 Degree Rotations
• 130.2 Estimate the Number of Degrees of Rotation and State the Direction
• 130.3 Rotate a Given Figure (i.e. 45 Degrees Clockwise)
• 130.4 Rotation that Lands a Given Figure on Top of Itself

131.Dilations

• 131.1 Determine if Graph Represents a Dilation
• 131.2 Graph Dilation by Multiplying Coordinates by a Given Number
• 131.3 If Multiply Coordinates by 5, 1/5, and -5, Will Figure be Larger or Smaller?

132.Customary Unit Conversions

• 132.1 Unit Conversions (One Step)
• 132.2 Unit Conversions (Two or More Steps)
• 132.3 Determine the Customary Unit of Measurement that Would be Used

133.Metric Unit Conversions

• 133.1 Metric Conversions (One Step)
• 133.2 Metric Conversions (Two or More Steps)
• 133.3 Determine the Metric Unit of Measurement that Would be Used

134.Units of Measurement

• 134.1
• 134.2 Convert between Customary and Metric Units (One Step)
• 134.3 Convert between Customary and Metric Units (Two Steps)

135.Perimeter

• 135.1 Find Perimeter Given Picture and All Side Lengths
• 135.2 Find Perimeter Given Picture and One or Two Side Lengths (Decimals)
• 135.3 Find Perimeter Given Info but No Picture (i.e. Square 8mm on a Side)
• 135.4 Find Perimeter Given Info but No Picture (Decimals)
• 135.5 Find Perimeter Given Info but No Picture (Mixed Numbers)

136.Circumference

• 136.1 Find Circumference Given Picture and Radius
• 136.2 Find Circumference Given Picture and Radius (Decimal)
• 136.3 Find Circumference Given Picture and Diameter
• 136.4 Find Circumference Given Picture and Diameter (Radius is Decimal)
• 136.5 Find Circumference Given Radius (No Picture and Decimal)
• 136.6 Find Circumference Given Diameter (No Picture)
• 136.7 Given Circumference, Find Radius

137.Perimeter and Circumference Word Problems

• 137.1 Perimeter Word Problems
• 137.2 Perimeter Word Problem (Cost of Fencing)
• 137.3 Circumference Word Problems (Decimals)
• 137.4 Given Perimeter of Square, Find Length of Side
• 137.5 Perimeter and Circumference Word Problems (Changing Dimensions)
• 137.6 Given Circumference, find Radius or Diameter
• 137.7 Given Radius and Distance Traveled, Find Number of Rotations of Wheel

138.Area of Squares and Rectangles

• 138.1 Area of Squares and Rectangles (Count the Squares)
• 138.2 Area of a Square
• 138.3 Area of a Rectangle
• 138.4 Area of a Rectangle (Decimals)
• 138.5 Area of a Square (Decimals)
• 138.6 Area of a Square (No Picture and Decimals)
• 138.7 Area of a Square or Rectangle (Mixed Numbers)
• 138.8 Is It Possible to Draw Square and Rectangle that Each Have Area of 36?

139.Area of Triangles

• 139.1 Area of a Triangle
• 139.2 Area of a Triangle (Altitude outside of Triangle)
• 139.3 Area of a Triangle (Decimal Base and Altitude outside of Triangle)
• 139.4 Area of a Triangle (No Picture and Decimals)
• 139.5 Area of a Triangle (No Picture and Big Numbers)
• 139.6 Area of a Triangle (No Picture and Fractions)
• 139.7 Area of a Triangle (No Picture and Mixed Numbers)
• 139.8 Area of a Right Triangle (Twisted Around)

140.Area of Parallelograms and Trapezoids

• 140.1 Derive Area of a Parallelogram
• 140.2 Area of a Parallelogram
• 140.3 Area of a Trapezoid
• 140.4 Area of a Parallelogram (Decimals)
• 140.5 Area of a Trapezoid (Decimals)
• 140.6 Area of a Trapezoid without Picture
• 140.7 Area of a Parallelogram (Twisted Around)

141.Area of a Circle

• 141.1 Area of a Circle Given Radius
• 141.2 Area of a Circle Given Diameter (Decimals)
• 141.3 Area of a Circle Given Diameter
• 141.4 Area of a Circle Given Radius (Mixed Number and No Picture)
• 141.5 Given Area of a Circle, Find Radius

142.Changing Dimensions

• 142.1 What Happens to Perimeter and Area if Change Dimensions

143.Area Word Problems

• 143.1 Given Area and One of Dimensions, Find Other Dimension
• 143.2 Comparing Areas of Two Figures
• 143.3 Area Word Problems (Decimals)
• 143.4 Area Word Problems (Fractions)
• 143.5 Which Figure Has Greatest Area
• 143.6 Area Word Problems (Changing Dimensions)
• 143.7 Area of Rectangular Yard with Price of Fertilizer

144.Surface Area

• 144.1 Surface Area of a Cube
• 144.2 Surface Area of a Rectangular Prism
• 144.3 Surface Area of a Triangular Prism
• 144.4 Surface Area of a Prism (Decimals)
• 144.5 Surface Area of a Pyramid
• 144.6 Surface Area of a House

145.Volume of Prisms and Pyramids

• 145.1 Volume of a Prism with a Trapezoidal Base
• 145.2 Volume of a Prism
• 145.3 Volume of a Cube
• 145.4 Volume of a Prism (Decimals)
• 145.5 Derive the Volume of a Prism Formula
• 145.6 Volume of a Prism with a Triangular Base
• 145.7 Volume of a Pyramid
• 145.8 Given Volume and Dimensions, Find Missing Dimension

146.Volume of Cylinders, Spheres, and Cones

• 146.1 Volume of a Cylinder
• 146.2 Volume of a Cylinder (Decimals)
• 146.3 Volume of a Cone
• 146.4 Volume of a Sphere
• 146.5 Volume of Cone and Sphere (Using 22/7 for Pi)
• 146.6 Volume of an Ice Cream Cone

147.Surface Area and Volume Word Problems

• 147.1 Volume of a Prism
• 147.2 Volume of a Prism with Cubes Fitting into Prism
• 147.3 Surface Area of a Prism Word Problems
• 147.4 Volume of a Cylinder Word Problems (Decimals)
• 147.5 Volume of a Pyramid Word Problems (Decimals)
• 147.6 Volume of a Sphere Word Problems (Decimals)
• 147.7 Surface Area of a Prism with Gallons of Paint
• 147.8 Surface Area and Volume Word Problems (Doubling Dimensions)
• 147.9 Given Volume and Diameter of a Cone, Find Height

148.Square Roots

• 148.1 Introduction to Square Roots
• 148.2 List of Perfect Squares
• 148.3 Square Root of Perfect Square
• 148.4 Square Root of Non-Perfect Square
• 148.5 Square Root that Does Not Break Down
• 148.6 Square Root of Harder Non-Perfect Square
• 148.7 Square Root with Sign in Front
• 148.8 Estimating Values of Square Roots

149.Using Square Roots to Solve Equations

• 149.1 Using Square Roots to Solve Equations (Perfect Square)
• 149.2 Using Square Roots to Solve Equations (Non-Perfect Square)
• 149.3 Using Square Roots to Solve Equations (One Step then Perfect Square)
• 149.4 Using Square Roots to Solve Equations
• 149.5 x/4 = 9/x

150.Pythagorean Theorem

• 150.1 Right Triangle Vocabulary
• 150.2 Introduction to the Pythagorean Theorem (a^2 + b^2 = c^2)
• 150.3 Pythagorean Theorem to Find Missing Side
• 150.4 Pythagorean Theorem to Find Missing Side (Square Root Breaks Down)
• 150.5 Pythagorean Theorem to Find Missing Side (Given Side is a Square Root)
• 150.6 Which of the Following can be the Lengths of a Right Triangle?

151.Pythagorean Triples

• 151.1 Pythagorean Triples
• 151.2 Looks Like a Pythagorean Triple but Is Not
• 151.3 Pythagorean Triple Word Problems
• 151.4 Which are Families of Pythagorean Triples, and Which are Not?

152.Pictographs and Line Plots

• 152.1 Make a Line Plot
• 152.2 Use a Line Plot
• 152.3 Use a Pictograph
• 152.4 Make a Pictograph
• 152.5 Use a Line Plot and Make a Pictograph

153.Bar Graphs

• 153.1 Use a Bar Graph
• 153.2 Use a Double Bar Graph
• 153.3 Make a Bar graph
• 153.4 Make a Double Bar Graph
• 153.5 Search for Data and Make a Bar Graph

154.Line Graphs

• 154.1 Use a Line Graph
• 154.2 Use a Double Line Graph
• 154.3 Make a Line Graph
• 154.4 Make a Double Line Graph
• 154.5 Explain Why a Line Graph Would Not be Best and What Graph Would

155.Circle Graphs

• 155.1 Use a Circle Graph to Find Percentages
• 155.2 Use a Circle Graph to Find Numbers
• 155.3 Make a Circle Graph
• 155.4 Calculate Percentages and Make a Circle Graph
• 155.5 Explain Why a Circle Graph Would Not be Best and What Graph Would

156.Stem-and-Leaf Plots and Frequency Charts

• 156.1 Make a Stem-and-Leaf Plot
• 156.2 Use a Stem-and-Leaf Plot
• 156.3 Make a Frequency Table
• 156.4 Use a Frequency Chart
• 156.5 Make a Stem-and-Leaf Plot and Frequency Chart and Use Best One

157.Histograms

• 157.1 Use a Histogram
• 157.2 Make a Histogram
• 157.3 Which Graphs Work Best (Bar/Circle vs. Histogram/Stem/Frequency)

158.Scatterplots and Trends

• 158.1 Make a Scatterplot and Describe Correlation
• 158.2 Use Scatterplot to Answer Questions
• 158.3 Use a Scatterplot to Determine Trend and Correlation
• 158.4 Why is Data Closer to Line of Best Fit in One Scatterplot vs. Another

159.Misleading Graphs

• 159.1 Misleading Bar Graphs (Advanced)
• 159.2 Misleading Line Graphs (Advanced)
• 159.3 Misleading Line Graphs
• 159.4 Misleading Bar Graphs
• 159.5 Misleading Pictographs
• 159.6 Misleading Histograms
• 159.7 Questions about Line Graph with Different Scales on Vertical Axis
• 159.8 Misleading Videos from Previous Lessons

160.Range, Median, and Mode

• 160.1 Find the Range, Median, and Mode
• 160.2 Find the Range, Median, and Mode (No Mode)
• 160.3 Find the Range, Median, and Mode (Median is Average, Multiple Modes)
• 160.4 Find the Range, Median, and Mode (Median is Average, No Mode)
• 160.5 Find the Set of Numbers that has a Given Range, Median, and Mode

161.Box-and-Whisker Plots

• 161.1 Make a Box-and-Whisker Plot
• 161.2 Make a Box-and-Whisker Plot (Quartiles can be Average of Two Numbers)
• 161.3 Make a Box-and-Whisker Plot (All Three Quartiles are Averages)
• 161.4 Use a Box-and-Whisker Plot
• 161.5 Interpreting a Box-and-Whisker Plot (Outliers)

162.Mean

• 162.1 Find the Mean
• 162.2 Find the Mean (Given a Stem and Leaf Plot)
• 162.3 Find the Mean (Given a Line Plot)
• 162.4 Find the Mean, Median, Mode, and Range
• 162.5 Given the Mean of a Data Set, Find the Missing Number in the Set

163.Central Tendency Word Problems

• 163.1 List 5 numbers such that the mean is 13, the median is 10, etc.
• 163.2 Find the Mean, Median, and Mode. Which is the Best Representation?
• 163.3 What Does She Need on Her Next Test in Order for Mean to be 90?
• 163.4 Mean, Median, and Mode Word Problems (List Everything Out)
• 163.5 7 students in the Class are 10 Years Old, 8 Students are 11 Years Old, etc.
• 163.6 If Average is 89 yards for First 7 Games, What Will Make Average 100?
• 163.7 If Smallest Number is Decreased, What Happens to Mean, Median, Mode, Range?

164.Simple Probability

• 164.1 Find Probability from a Spinner (Write as Fraction, Decimal, and Percent)
• 164.2 Find Probability from a Number Cube
• 164.3 Find Probability from a Bag of Blocks
• 164.4 Find Probability from Cards
• 164.5 Find Probability from a Spinner with Numbers and Letters
• 164.6 Find Probability from Tricky Spinner with One Area Larger than Others

165.Experimental Probability

• 165.1 Experimental Probability
• 165.2 Theoretical Probability
• 165.3 Predict the Number of Times You Would Roll a 2 if Roll Cube 600 Times

166.Probability of Independent Events

• 166.1 Probability of Independent Events (Coin or Number Cube)
• 166.2 Probability of Independent Events (Cards or Marbles)
• 166.3 Probability of Independent Events (Two Different Spinners)
• 166.4 Probability of Independent Events (Same Spinner Multiple Times)
• 166.5 Probability of Getting Tails 10 Times in a Row? Tails on Next Toss?

167.Probability of Dependent Events

• 167.1 Probability of Dependent Events (Socks and Cookies)
• 167.2 Probability of Dependent Events (Pens and Bubble Gum with Picture)
• 167.3 Probability of Dependent Events (Letter Tiles with Picture)
• 167.4 Probability of Dependent Events (Cards in a Deck)
• 167.5 Determine if Given Probability is Dependent or Independent

168.Simulations

• 168.1 Simulations with Coins, Number Cubes, Cards, and Spinners

169.Tree Diagrams and the Counting Principle

• 169.1 Draw a Tree Diagram
• 169.2 Fundamental Counting Principle Explained
• 169.3 Fundamental Counting Principle (12 Types of Bagels and 5 Types of Cream Cheese, etc.)
• 169.4 Fundamental Counting Principle (If 31 Flavors, How Many Ways Can Two Scoops Be Chosen?)
• 169.5 Fundamental Counting Principle (Football, Cross-Country, PE in Fall, etc.)
• 169.6 Fundamental Counting Principle (License Plates)

170.Permutations

• 170.1 Listing Permutations
• 170.2 Fundamental Counting Principle and Listing Permutations
• 170.3 Permutations (How Many Ways Can You Arrange 6 Books on a Shelf, etc.)
• 170.4 Permutations (How Many Ways Can Doughnuts Shown Be Arranged, etc.)
• 170.5 Factorial

171.Combinations

• 171.1 List Combinations
• 171.2 Combinations (Using a,b,c,d,e to Represent up to 5 Elements)
• 171.3 Combinations (Using Chart to Represent 6 or 7 Elements)
• 171.4 Difference between Counting Principle, Permutations, and Combinations