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| Preface | |
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| Base Ten Number System | |
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| Readingand Saying Cardinal Numbers | |
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| Cardinal Numbers | |
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| Base Ten Place Names | |
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| Placing Commas | |
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| How Do You Say the Numbers? | |
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| Vocabulary | |
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| Chapter Review | |
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| Reading and Saying the Ordinal Numbers | |
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| Ordinal Numbers | |
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| How Do You Say the Dates? | |
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| Chapter Review | |
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| Rounding Off Numbers | |
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| Round Numbers | |
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| Rounding Off Numbers | |
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| Rounding Off to Tens' Place | |
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| Rounding Off to Hundreds' and Thousands' Places | |
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| Estimation | |
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| Chapter Review | |
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| Vocabulary Words | |
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| Operations With Whole Numbers | |
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| Addition | |
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| Language of Addition | |
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| Commutative Property of Addition | |
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| Associative Property of Addition | |
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| Additive Identity Property of Addition | |
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| Additions With Carrying | |
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| Solving Addition Word Problems | |
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| Chapter Review | |
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| Subtraction | |
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| Language of Subtraction | |
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| Subtraction of Whole Numbers | |
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| Subtraction With Borrowing | |
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| Subtraction With Borrowing from Zeros | |
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| Inverse Operations | |
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| Using Inverse Operations to Find Missing Numbers | |
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| Chapter Review | |
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| Multiplication | |
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| Language of Multiplication | |
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| Symbols for Multiplication | |
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| Commutative Property of Multiplication | |
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| Associative Property of Multiplication | |
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| Multiplicative Identity Property of Multiplication | |
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| Multiplicative Property of Zero | |
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| Distributive Property of Multiplication | |
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| Multiplying Two-Digit and Three-Digit numbers by a One-Digit number | |
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| Multiplying and Carrying | |
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| Multiplying Two-Digits by Two Digits | |
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| Multiplying Two-Digit numbers by Two-Digit numbers with carrying | |
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| Multiplying Three-Digit Numbers by Two- and Three-Digit Numbers | |
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| Multiples of Ten | |
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| Word Problems with Unnecessary Information | |
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| Solving Multiplication Word Problems | |
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| Chapter Review | |
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| Division | |
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| Language of Division | |
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| Dividing with One-Digit Divisors | |
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| One-Digit Divisors with Remainders | |
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| Dividing with Two-Digit Divisors | |
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| Inverse Operations | |
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| Using Inverse Operations to Find Missing Numbers | |
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| Multiples of Ten | |
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| Order of Operations | |
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| More Order of Operations | |
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| Solving Division Word Problems | |
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| Problem Solving with Remainders | |
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| Chapter Review | |
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| Vocabulary Words | |
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| Number Theory | |
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| Integers | |
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| The Number Line | |
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| Comparing Integers | |
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| Chapter Review | |
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| Prime Numbers, Bases, and Exponents | |
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| Prime Numbers | |
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| Prime Factors | |
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| Bases and Exponents | |
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| Using Base Ten | |
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| The Zero Exponent | |
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| Expanded Notation | |
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| Chapter Review | |
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| Vocabulary Words | |
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| Operations with Decimal Numbers | |
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| Decimals | |
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| Tenths | |
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| Hundredths | |
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| Equivalent Decimals in Tenths and Hundredths | |
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| Comparing Decimals in Tenths and Hundredths | |
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| Thousandths | |
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| Equivalent Decimals in Tenths, Hundredths, and Thousandths | |
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| Comparing Decimals in Tenths, Hundredths, and Thousandths | |
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| More Decimal Places | |
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| Chapter Review | |
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| Adding and Subtracting Decimals | |
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| Writing Integers as Decimals | |
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| Adding Decimals | |
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| Money | |
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| Subtracting Decimals | |
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| Using Inverse Operations to Find Missing Decimals | |
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| Rounding Off Decimals | |
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| Chapter Review | |
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| Multiplying and Dividing Decimals | |
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| Multiplying Decimals | |
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| Multiplying Decimals by Multiples of Ten | |
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| Dividing with Decimals | |
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| If the Dividend Is a Decimal | |
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| If the Divisor Is a Decimal | |
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| If the Dividend and Divisor Are Decimals | |
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| If the Divisor Is Greater Than the Dividend | |
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| Problem Solving with Decimals | |
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| Average or Mean | |
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| Dividing Decimals by Multiples of Ten | |
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| Chapter Review | |
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| Vocabulary Words | |
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| Appendix | |
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| Listening Script | |