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Number Theory Resources : Page 3

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In Your Prime
In Your Prime
Activity
In Your Prime large image
In Your Prime
Fourth Grade
Number Theory
Learning to identify prime numbers can be tricky. But this fun card game can make memorizing some basic prime numbers a breeze.
Activity
In Your Prime
In Your Prime
Activity
In Your Prime
Learning to identify prime numbers can be tricky. But this fun card game can make memorizing some basic prime numbers a breeze.
Fourth Grade
Number Theory
Activity
Vocabulary Cards: Multiples and Skip Counting
Vocabulary Cards: Multiples and Skip Counting
Worksheet
Vocabulary Cards: Multiples and Skip Counting large image
Vocabulary Cards: Multiples and Skip Counting
Fourth Grade
Multiplication
Use these vocabulary cards with the EL Support Lesson: Multiples and Skip Counting.
Worksheet
Vocabulary Cards: Multiples and Skip Counting
Vocabulary Cards: Multiples and Skip Counting
Worksheet
Vocabulary Cards: Multiples and Skip Counting
Use these vocabulary cards with the EL Support Lesson: Multiples and Skip Counting.
Fourth Grade
Multiplication
Worksheet
Glossary: The Factor Tree Strategy
Glossary: The Factor Tree Strategy
Worksheet
Glossary: The Factor Tree Strategy large image
Glossary: The Factor Tree Strategy
Fourth Grade
Multiplication
Use this glossary with the EL Support Lesson: The Factor Tree Strategy.
Worksheet
Glossary: The Factor Tree Strategy
Glossary: The Factor Tree Strategy
Worksheet
Glossary: The Factor Tree Strategy
Use this glossary with the EL Support Lesson: The Factor Tree Strategy.
Fourth Grade
Multiplication
Worksheet
Carnival Toss Multiples #1
Carnival Toss Multiples #1
Worksheet
Carnival Toss Multiples #1 large image
Carnival Toss Multiples #1
Third Grade
Multiplication
Aim for multiples of six on this worksheet with a carnival toss theme. To keep track, write the numbers at the bottom of the page.
Worksheet
Carnival Toss Multiples #1
Carnival Toss Multiples #1
Worksheet
Carnival Toss Multiples #1
Aim for multiples of six on this worksheet with a carnival toss theme. To keep track, write the numbers at the bottom of the page.
Third Grade
Multiplication
Worksheet
Vocabulary Cards: Conversations About Prime and Composite Numbers
Vocabulary Cards: Conversations About Prime and Composite Numbers
Worksheet
Vocabulary Cards: Conversations About Prime and Composite Numbers large image
Vocabulary Cards: Conversations About Prime and Composite Numbers
Fourth Grade
Number Theory
Use these vocabulary cards with the EL Support Lesson: Conversations About Prime and Composite Numbers.
Worksheet
Vocabulary Cards: Conversations About Prime and Composite Numbers
Vocabulary Cards: Conversations About Prime and Composite Numbers
Worksheet
Vocabulary Cards: Conversations About Prime and Composite Numbers
Use these vocabulary cards with the EL Support Lesson: Conversations About Prime and Composite Numbers.
Fourth Grade
Number Theory
Worksheet
Glossary: Multiples and Skip Counting
Glossary: Multiples and Skip Counting
Worksheet
Glossary: Multiples and Skip Counting large image
Glossary: Multiples and Skip Counting
Fourth Grade
Multiplication
Use this glossary with the EL Support Lesson: Multiples and Skip Counting.
Worksheet
Glossary: Multiples and Skip Counting
Glossary: Multiples and Skip Counting
Worksheet
Glossary: Multiples and Skip Counting
Use this glossary with the EL Support Lesson: Multiples and Skip Counting.
Fourth Grade
Multiplication
Worksheet
Dino Pet Drop: Identifying Multiples (Game 1)
Dino Pet Drop: Identifying Multiples (Game 1)
Game
Dino Pet Drop: Identifying Multiples (Game 1) large image
Dino Pet Drop: Identifying Multiples (Game 1)
Fourth Grade
Number Theory
Help Roly to catch all the dinos in this high-flying fourth grade math game!
Game
Dino Pet Drop: Identifying Multiples (Game 1)
Dino Pet Drop: Identifying Multiples (Game 1)
Game
Dino Pet Drop: Identifying Multiples (Game 1)
Help Roly to catch all the dinos in this high-flying fourth grade math game!
Fourth Grade
Number Theory
Game
Vocabulary Cards: Doubling Multiples for Division
Vocabulary Cards: Doubling Multiples for Division
Worksheet
Vocabulary Cards: Doubling Multiples for Division large image
Vocabulary Cards: Doubling Multiples for Division
Fifth Grade
Multiplication
Use these vocabulary cards with the EL Support Lesson: Doubling Multiples for Division.
Worksheet
Vocabulary Cards: Doubling Multiples for Division
Vocabulary Cards: Doubling Multiples for Division
Worksheet
Vocabulary Cards: Doubling Multiples for Division
Use these vocabulary cards with the EL Support Lesson: Doubling Multiples for Division.
Fifth Grade
Multiplication
Worksheet
Vocabulary Cards: The Factor Tree Strategy
Vocabulary Cards: The Factor Tree Strategy
Worksheet
Vocabulary Cards: The Factor Tree Strategy large image
Vocabulary Cards: The Factor Tree Strategy
Fourth Grade
Multiplication
Use these vocabulary cards with the EL Support Lesson: The Factor Tree Strategy.
Worksheet
Vocabulary Cards: The Factor Tree Strategy
Vocabulary Cards: The Factor Tree Strategy
Worksheet
Vocabulary Cards: The Factor Tree Strategy
Use these vocabulary cards with the EL Support Lesson: The Factor Tree Strategy.
Fourth Grade
Multiplication
Worksheet
Glossary: Doubling Multiples for Division
Glossary: Doubling Multiples for Division
Worksheet
Glossary: Doubling Multiples for Division large image
Glossary: Doubling Multiples for Division
Fifth Grade
Multiplication
Use this glossary with the EL Support Lesson: Doubling Multiples for Division.
Worksheet
Glossary: Doubling Multiples for Division
Glossary: Doubling Multiples for Division
Worksheet
Glossary: Doubling Multiples for Division
Use this glossary with the EL Support Lesson: Doubling Multiples for Division.
Fifth Grade
Multiplication
Worksheet
Glossary: Factor Friend or Foe?
Glossary: Factor Friend or Foe?
Worksheet
Glossary: Factor Friend or Foe? large image
Glossary: Factor Friend or Foe?
Fourth Grade
Multiplication
Use this glossary with the EL Support Lesson: Factor Friend or Foe?
Worksheet
Glossary: Factor Friend or Foe?
Glossary: Factor Friend or Foe?
Worksheet
Glossary: Factor Friend or Foe?
Use this glossary with the EL Support Lesson: Factor Friend or Foe?
Fourth Grade
Multiplication
Worksheet
Vocabulary Cards: Factor Friend or Foe?
Vocabulary Cards: Factor Friend or Foe?
Worksheet
Vocabulary Cards: Factor Friend or Foe? large image
Vocabulary Cards: Factor Friend or Foe?
Fourth Grade
Multiplication
Use these vocabulary cards with the EL Support Lesson: Factor Friend or Foe?
Worksheet
Vocabulary Cards: Factor Friend or Foe?
Vocabulary Cards: Factor Friend or Foe?
Worksheet
Vocabulary Cards: Factor Friend or Foe?
Use these vocabulary cards with the EL Support Lesson: Factor Friend or Foe?
Fourth Grade
Multiplication
Worksheet
Jumpy: Which Factor Does Not Belong?
Jumpy: Which Factor Does Not Belong?
Game
Jumpy: Which Factor Does Not Belong? large image
Jumpy: Which Factor Does Not Belong?
Fourth Grade
Number Theory
Boost learners' grasp of number theory with this online math game all about factors and multiples!
Game
Jumpy: Which Factor Does Not Belong?
Jumpy: Which Factor Does Not Belong?
Game
Jumpy: Which Factor Does Not Belong?
Boost learners' grasp of number theory with this online math game all about factors and multiples!
Fourth Grade
Number Theory
Game
Dino Skateboarding: Which Factor Does Not Belong?
Dino Skateboarding: Which Factor Does Not Belong?
Game
Dino Skateboarding: Which Factor Does Not Belong? large image
Dino Skateboarding: Which Factor Does Not Belong?
Fifth Grade
Number Theory
Players race to determine which answer choice is not a factor of the given number.
Game
Dino Skateboarding: Which Factor Does Not Belong?
Dino Skateboarding: Which Factor Does Not Belong?
Game
Dino Skateboarding: Which Factor Does Not Belong?
Players race to determine which answer choice is not a factor of the given number.
Fifth Grade
Number Theory
Game
Sorting Rational and Irrational Numbers #1
Sorting Rational and Irrational Numbers #1
Interactive Worksheet
Sorting Rational and Irrational Numbers #1 large image
Sorting Rational and Irrational Numbers #1
Eighth Grade
Number Theory
Let’s practice sorting rational and irrational numbers with this engaging worksheet! 
Interactive Worksheet
Sorting Rational and Irrational Numbers #1
Sorting Rational and Irrational Numbers #1
Interactive Worksheet
Sorting Rational and Irrational Numbers #1
Let’s practice sorting rational and irrational numbers with this engaging worksheet! 
Eighth Grade
Number Theory
Interactive Worksheet
Multiplication with Partial Products
Multiplication with Partial Products
Lesson Plan
Multiplication with Partial Products large image
Multiplication with Partial Products
Fifth Grade
Number Theory
Teach your students to use partial products as a strategy to multiply multi-digit numbers.
Lesson Plan
Multiplication with Partial Products
Multiplication with Partial Products
Lesson Plan
Multiplication with Partial Products
Teach your students to use partial products as a strategy to multiply multi-digit numbers.
Fifth Grade
Number Theory
Lesson Plan
Factors of Prime and Composite Numbers #1
Factors of Prime and Composite Numbers #1
Worksheet
Factors of Prime and Composite Numbers #1 large image
Factors of Prime and Composite Numbers #1
Fourth Grade
Number Theory
Learners practice determining factors of prime and composite numbers with this fourth-grade math worksheet!
Worksheet
Factors of Prime and Composite Numbers #1
Factors of Prime and Composite Numbers #1
Worksheet
Factors of Prime and Composite Numbers #1
Learners practice determining factors of prime and composite numbers with this fourth-grade math worksheet!
Fourth Grade
Number Theory
Worksheet
Factors of Prime and Composite Numbers #2
Factors of Prime and Composite Numbers #2
Worksheet
Factors of Prime and Composite Numbers #2 large image
Factors of Prime and Composite Numbers #2
Fourth Grade
Number Theory
Get more practice determining factors of prime and composite numbers with this helpful math worksheet!
Worksheet
Factors of Prime and Composite Numbers #2
Factors of Prime and Composite Numbers #2
Worksheet
Factors of Prime and Composite Numbers #2
Get more practice determining factors of prime and composite numbers with this helpful math worksheet!
Fourth Grade
Number Theory
Worksheet
Prime and Composite Numbers to 20
Prime and Composite Numbers to 20
Worksheet
Prime and Composite Numbers to 20 large image
Prime and Composite Numbers to 20
Fourth Grade
Number Theory
Take a deep dive into prime and composite numbers to 20 with this exploratory worksheet!
Worksheet
Prime and Composite Numbers to 20
Prime and Composite Numbers to 20
Worksheet
Prime and Composite Numbers to 20
Take a deep dive into prime and composite numbers to 20 with this exploratory worksheet!
Fourth Grade
Number Theory
Worksheet
Prime Number Maze
Prime Number Maze
Interactive Worksheet
Prime Number Maze large image
Prime Number Maze
Fourth Grade
Number Theory
Become the prime expert of prime numbers with this engaging maze!
Interactive Worksheet
Prime Number Maze
Prime Number Maze
Interactive Worksheet
Prime Number Maze
Become the prime expert of prime numbers with this engaging maze!
Fourth Grade
Number Theory
Interactive Worksheet
Prime and Composite Numbers to 100
Prime and Composite Numbers to 100
Worksheet
Prime and Composite Numbers to 100 large image
Prime and Composite Numbers to 100
Fourth Grade
Number Theory
Learn to identify prime and composite numbers in this guided worksheet!
Worksheet
Prime and Composite Numbers to 100
Prime and Composite Numbers to 100
Worksheet
Prime and Composite Numbers to 100
Learn to identify prime and composite numbers in this guided worksheet!
Fourth Grade
Number Theory
Worksheet
Greatest Common Factor Maze
Greatest Common Factor Maze
Interactive Worksheet
Greatest Common Factor Maze large image
Greatest Common Factor Maze
Sixth Grade
Number Theory
Navigate a maze of greatest common factors in this fun worksheet!
Interactive Worksheet
Greatest Common Factor Maze
Greatest Common Factor Maze
Interactive Worksheet
Greatest Common Factor Maze
Navigate a maze of greatest common factors in this fun worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Least Common Multiple Maze
Least Common Multiple Maze
Interactive Worksheet
Least Common Multiple Maze large image
Least Common Multiple Maze
Sixth Grade
Number Theory
Test your knowledge of least common multiples with this inviting maze!
Interactive Worksheet
Least Common Multiple Maze
Least Common Multiple Maze
Interactive Worksheet
Least Common Multiple Maze
Test your knowledge of least common multiples with this inviting maze!
Sixth Grade
Number Theory
Interactive Worksheet
Finding the Greatest Common Factor #1
Finding the Greatest Common Factor #1
Interactive Worksheet
Finding the Greatest Common Factor #1 large image
Finding the Greatest Common Factor #1
Sixth Grade
Number Theory
Learn to determine the greatest common factor of a set of numbers in this sixth-grade worksheet!
Interactive Worksheet
Finding the Greatest Common Factor #1
Finding the Greatest Common Factor #1
Interactive Worksheet
Finding the Greatest Common Factor #1
Learn to determine the greatest common factor of a set of numbers in this sixth-grade worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Finding the Least Common Multiple #1
Finding the Least Common Multiple #1
Interactive Worksheet
Finding the Least Common Multiple #1 large image
Finding the Least Common Multiple #1
Sixth Grade
Number Theory
Practice calculating the least common multiple (LCM) of two numbers with this useful worksheet!
Interactive Worksheet
Finding the Least Common Multiple #1
Finding the Least Common Multiple #1
Interactive Worksheet
Finding the Least Common Multiple #1
Practice calculating the least common multiple (LCM) of two numbers with this useful worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Finding the Greatest Common Factor #2
Finding the Greatest Common Factor #2
Interactive Worksheet
Finding the Greatest Common Factor #2 large image
Finding the Greatest Common Factor #2
Sixth Grade
Number Theory
Test your ability to find the greatest common factor (GCF) of a set of numbers with this worksheet!
Interactive Worksheet
Finding the Greatest Common Factor #2
Finding the Greatest Common Factor #2
Interactive Worksheet
Finding the Greatest Common Factor #2
Test your ability to find the greatest common factor (GCF) of a set of numbers with this worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Finding the Least Common Multiple #2
Finding the Least Common Multiple #2
Interactive Worksheet
Finding the Least Common Multiple #2 large image
Finding the Least Common Multiple #2
Sixth Grade
Number Theory
Test your multiplication and division skills with this least common multiple (LCM) worksheet!
Interactive Worksheet
Finding the Least Common Multiple #2
Finding the Least Common Multiple #2
Interactive Worksheet
Finding the Least Common Multiple #2
Test your multiplication and division skills with this least common multiple (LCM) worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Finding the Least Common Multiple #3
Finding the Least Common Multiple #3
Interactive Worksheet
Finding the Least Common Multiple #3 large image
Finding the Least Common Multiple #3
Sixth Grade
Number Theory
Master least common multiples (LCMs) in this essential sixth-grade worksheet!
Interactive Worksheet
Finding the Least Common Multiple #3
Finding the Least Common Multiple #3
Interactive Worksheet
Finding the Least Common Multiple #3
Master least common multiples (LCMs) in this essential sixth-grade worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Finding the Greatest Common Factor #3
Finding the Greatest Common Factor #3
Interactive Worksheet
Finding the Greatest Common Factor #3 large image
Finding the Greatest Common Factor #3
Sixth Grade
Number Theory
Master determining the greatest common factor (GCF) of a set of numbers with this inviting worksheet!
Interactive Worksheet
Finding the Greatest Common Factor #3
Finding the Greatest Common Factor #3
Interactive Worksheet
Finding the Greatest Common Factor #3
Master determining the greatest common factor (GCF) of a set of numbers with this inviting worksheet!
Sixth Grade
Number Theory
Interactive Worksheet
Rainbow Factors #1
Rainbow Factors #1
Worksheet
Rainbow Factors #1 large image
Rainbow Factors #1
Fourth Grade
Number Theory
What treasure will you find at the end of these rainbows? Factor pairs, of course!
Worksheet
Rainbow Factors #1
Rainbow Factors #1
Worksheet
Rainbow Factors #1
What treasure will you find at the end of these rainbows? Factor pairs, of course!
Fourth Grade
Number Theory
Worksheet
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