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Introducing Decimals

40 Lessons 2 hours

Learn how to perform various operations with decimals, such as converting them to fractions, rounding, ordering, and using them in different applications like money and equations, and explore key concepts such as averages, probability, and simplifying expressions with square roots.

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Tutorial Lessons

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Introduction to Decimals

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Naming Decimals

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3

Writing Decimals

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4

Converting Decimals to Fractions or Mixed Numbers

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5

Locating Decimals on the Number Line

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6

Ordering Decimals

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Rounding Decimals

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8

Key Concepts

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9

Adding and Subtracting Decimals

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10

Multiplying Decimals

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11

Dividing Decimals

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12

Using Decimals in Money Applications

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Key Concepts

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14

Converting Fractions to Decimals

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15

Ordering Decimals and Fractions

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16

Simplifying Expressions Using the Order of Operations

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Finding the Circumference and Area of Circles

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Key Concepts

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19

Determining Whether a Decimal is a Solution of an Equation

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20

Solving Equations with Decimals

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21

How to Translate to an Equation and Solve

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22

Key Concepts

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Introducing Averages and Probability

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24

Calculating the Mean of a Set of Numbers

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25

Finding the Median of a Set of Numbers

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Identifying the Mode of a Set of Numbers

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27

Using the Basic Definition of Probability

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Key Concepts

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29

Writing a Ratio as a Fraction

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30

Writing a Rate as a Fraction

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31

Finding Unit Rates

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32

Finding Unit Price

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Translating Phrases to Expressions with Fractions

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34

Key Concepts

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35

Simplifying Expressions with Square Roots

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Estimating Square Roots

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37

Approximating Square Roots with a Calculator

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38

Simplifying Variable Expressions with Square Roots

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39

Using Square Roots in Applications

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40

Key Concepts

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