**Math Links by Grade 4 Common Core Standards**

Numbers and Operations in Base 10 (NBT)

Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.

**4.NBT.1 - I can recognize that in multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right.**

**Worksheets, Online Games, Quizzes**

- Practice ws #1
- Practice ws #2
- Converting Place Value
- Number sense: Place values - IXL.com
- Number sense: Convert between place values - IXL.com
- Converting between place values
- Identifying Place Values from Between Columns
- Place Value Pirates (game)

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**Vocabulary**(online dictionary- place value
- digit

**Videos:**

Handout - The lesson directions and worksheet to use with Learn Zillon videos below.

- Learn Zillion - Use place value chart and arrow cards to understand large numbers
- Learn Zillion - Model numbers using base ten blocks
- Learn Zillion - Understand relationships between digits and their place value
- Learn Zillion - Multiply by powers of 10
- Learn Zillion - Divide by powers of 10
- Learn Zillion - Understand place value: multiplying by a power of 10
- Learn Zillion - Understand place value: dividing by a power of 10

**4.NBT.2 - I can read and write larger whole numbers using numerals, words and in expanded form.**

**Worksheets, Online Games, Quizzes**

- Place value chart
- Place value through thousands
- Place value through ten-thousands
- Place value through hundred-thousands
- Place value through billions
- Number sense: Place values - IXL.com
- Number sense: Word names for numbers IXL.com
- Multiplication: Inequalities with multiplication IXL.com
- Division: Inequalities with division IXL.com
- Place Value Number Line Quiz
- Cyberchase Game - Number Sense
- Converting numbers to written words (basic)
- Converting written words to numbers
- What number am I?
- Identifying place values
- Place Value Pirates (game)
- Decimals of the Caribbean (game)

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**Vocabulary**(online dictionary- whole numbers
- place value
- standard form
- expanded form
- word form

**Videos**:

Handout - The lesson directions and worksheet to use with Learn Zillon videos below.

- Learn Zillion - Read and write numbers in numeric form
- Learn Zillion - Read and write numbers in word form
- Learn Zillion - Read and write numbers in expanded form
- Learn Zillion - Read and write numbers with zeros
- Learn Zillion - Write numbers in expanded form
- Learn Zillion - Write numbers in word form: using place values
- Learn Zillion - Find place value: using pictures

**4.NBT.2 - I can compare two large numbers using symbols to show the comparison.**

**Worksheets, Online Games, Quizzes**

- Comparing Numbers
- Comparing Numbers
- Number Sense: Compare numbers up to billions IXL.com
- Mixed operations: Inequalities involving addition, subtraction, multiplication, and division - IXL.com
- Comparing the place values of numbers
- Ordering large, similar numbers
- Analyzing multiplication equations using <, >, and =
- Analyzing division equations using <, >, and =

**Videos:**

Handout - The lesson directions and worksheet to use with Learn Zillon videos below.

**4.NBT.3 - I can round large whole numbers to any place.**

**Worksheets, Online Games, Quizzes**

- Worksheetworks.com - Rounding Numbers (Printable)
- Math-Aids.com (Printable) worksheets
- Rounding Worksheets (Printable)
- Rounding to the nearest thousand
- Rounding to the nearest ten thousand
- Rounding to the nearest hundred thousand
- Rounding to the nearest million
- Estimating products
- Estimating quotients
- Estimation Valley Golf

**Vocabulary**(online dictionary)- place value
- value
- digit

**Videos:**

- Khan Academy Video - Rounding Whole Numbers 1
- Khan Academy Video - Rounding Whole Numbers 2
- Khan Academy Video - Rounding Whole Numbers 3
- Learn Zillion - Locate benchmark numbers on a number line
- Learn Zillion - Round numbers to the leading digit using a number line
- Learn Zillion - Round numbers to a specified place on a number line
- Learn Zillion - Round 9's using base ten blocks
- Learn Zillion - Round in real-life situations

**4.NBT.4 - I can add and subtract large numbers.**

**Worksheets, Online Games, Quizzes**

- Triplet Addition
- Inverted Addition
- Make Your Own Addition Worksheets - To Print
- Subtraction 1
- Subtraction 2
- Subtraction 3
- Decimals Subtraction
- Make Your Own Subtraction Worksheets - To Print
- Online Game - Circle 99
- Addition with carrying - Khan Academy
- Subtraction with borrowing - Khan Academy
- Adding five and six-digit numbers
- Missing digit addition problems
- Adding three numbers with five or six-digit numbers
- Subtracting five and six-digit numbers
- Subtraction word problems with five and six-digit numbers
- Missing digit subtraction problems
- Subtracting three numbers with five or six-digit numbers
- Drag N Drop Math

**4.NBT.5 - I can multiply a whole number up to four digits by a one-digit whole number.**

**Worksheets, Online Games, Quizzes**

- Worksheetworks - (printable)
- Multiplication: Multiply 1-digit numbers by larger numbers (IXL.com)
- Multiplying three-digit numbers by one-digit numbers
- Multiplying four-digit numbers by one-digit numbers
- Multiplication Properties
- Using Properties of Multiplication

**Vocabulary**(online dictionary)- factor
- product
- array
- area model

**Videos:**

- Learn Zillion - Use an array to multiply a two digit number by a one digit number
- Learn Zillion - Use area models to show multiplication of whole numbers
- Learn Zillion - Solve 1 by 2 digit multiplication problems: using partial products
- Learn Zillion - Solve 1 by 1 digit multiplication problems: using area model
- Khan Academy Video - Lattice Multiplication
- Khan Academy Video - Multiplication estimation example
- Khan Academy Video - Why Lattice Multiplication Works

**4.NBT.5 - I can multiply two two-digit numbers.**

**Worksheets, Online Games, Quizzes**

- 2 digit by 2 digit - Multiplication 1
- 2 digit by 2 digit - Multiplication 2
- 2 digit by 2 digit - Multiplication 3
- Multi-Digit Multiplication (Printable) - Worksheetworks.com
- Multiplication: Multiplication patterns over increasing place values (IXL.com)
- Multiplication: Multiply a 2-digit number by a 2-digit number: complete the missing steps (IXL.com)
- Multiplication: Multiply a 2-digit number by a 2-digit number (IXL.com)
- Multiplication: Multiply numbers ending in zeroes (IXL.com)
- Multiplying two-digit numbers

**Vocabulary**(online dictionary)- factor
- product
- array
- area model

**Videos:**

- Khan Academy Video - 2 digit by 2 digit Multiplication
- Khan Academy Video - Lattice Multiplication
- Learn Zillion - Use place value understanding to multiply three and four digit numbers
- Learn Zillion - Use an area model to multiply two digit numbers by two digit numbers
- Learn Zillion - Use an area model to multiply a three digit number by a one digit number
- Learn Zillion - Solve multiplication problems: using arrays 1
- Learn Zillion - Solve 2 by 2 digit multiplication problems: using partial products
- Learn Zillion - Solve 2 by 2 digit multiplication problems: using area model

**4.NBT.6 - I can find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors.**

**Worksheets, Online Games, Quizzes**

- Divisibility Rules
- Long Division 1
- Long Division 2
- Long Division 3
- Make Your Own Division Worksheets - To Print
- Dividing three-digit numbers by one-digit numbers - mrnussbaum.com
- Dividing four-digit numbers by one digit numbers - mrnussbaum.com
- Learning the concept of remainder - mrnussbaum.com
- Drag N Drop Math - mrnussbaum.com

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**Vocabulary**(online dictionary- dividend
- divisor
- quotient

**Videos:**

- Khan Academy Video - Division 1
- Khan Academy Video - More Long Division Examples
- Learn Zillion - Divide two-digit dividends using friendly multiples
- Learn Zillion - Report remainders as fractions
- Learn Zillion - Report remainders as whole numbers by drawing pictures to decide whether to round up or down
- Learn Zillion - Divide three-digit dividends
- Learn Zillion - Divide four-digit dividends
- Learn Zillion - Solve division problems: using picture model
- Learn Zillion - Solve division problems: using array
- Learn Zillion - Solve division problems without remainders: using multiplication rules
- Learn Zillion - Solve division problems with remainders: using partial quotient
- Learn Zillion - Solve division problems: using inverse operations

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