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Number Theory Resources : Page 3

Use these vocabulary cards with the EL Support Lesson: Doubling Multiples for Division.

Vocabulary Cards: Doubling Multiples for Division

Use this glossary with the EL Support Lesson: Factor Friend or Foe?

Glossary: Factor Friend or Foe?

Use these vocabulary cards with the EL Support Lesson: Factor Friend or Foe?

Vocabulary Cards: Factor Friend or Foe?

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.

Carnival Toss Multiples #1

How well do you know your rational and irrational numbers? Find out with this number sense game! 

Dino Crunch: Irrational Numbers

Players navigate rivers and streets while demonstrating their knowledge of factors and multiples.

Jumpy: Find the Multiples

Understanding how our ten number system works enables students to see interesting and useful patterns and relationships in these math activities. These patterns allow students to develop more efficient mental math strategies when multiplying by multiples of 10 or 100. Students will also review rounding and apply this skill to larger numbers - up to 100,000’s place.

Number Sense 3

Hone mental math skills and boost knowledge of factors and multiples in this skateboarding adventure.

Dino Skateboarding: Find the Factors

Build number sense skills while practicing finding the least common multiple in this matching game!

Match: Least Common Multiple

Grow your fourth grader's number sense skills with this fishing-themed math game! 

Dino Fishing: Composite Numbers

Help Roly to catch all the dinos in this high-flying fourth grade math game! 

Dino Pet Drop: Identifying Multiples (Game 1)

Learners differentiate between prime and composite numbers while unearthing dinosaur bones.

Dino Bones: Prime Numbers

Boost learners' grasp of number theory with this online math game all about factors and multiples!

Jumpy: Which Factor Does Not Belong?

Players race to determine which answer choice is not a factor of the given number.

Dino Skateboarding: Which Factor Does Not Belong?

Teach your students to use partial products as a strategy to multiply multi-digit numbers. 


Multiplication with Partial Products

Learners practice determining factors of prime and composite numbers with this fourth-grade math worksheet!

Factors of Prime and Composite Numbers #1

Get more practice determining factors of prime and composite numbers with this helpful math worksheet!

Factors of Prime and Composite Numbers #2

Take a deep dive into prime and composite numbers to 20 with this exploratory worksheet!

Prime and Composite Numbers to 20

Become the prime expert of prime numbers with this engaging maze!

Prime Number Maze

Learn to identify prime and composite numbers in this guided worksheet!

Prime and Composite Numbers to 100

Navigate a maze of greatest common factors in this fun worksheet!

Greatest Common Factor Maze

Test your knowledge of least common multiples with this inviting maze!

Least Common Multiple Maze

Learn to determine the greatest common factor of a set of numbers in this sixth-grade worksheet!

Finding the Greatest Common Factor #1

Practice calculating the least common multiple (LCM) of two numbers with this useful worksheet!

Finding the Least Common Multiple #1

Test your ability to find the greatest common factor (GCF) of a set of numbers with this worksheet!

Finding the Greatest Common Factor #2

Test your multiplication and division skills with this least common multiple (LCM) worksheet!

Finding the Least Common Multiple #2

Master least common multiples (LCMs) in this essential sixth-grade worksheet!

Finding the Least Common Multiple #3

Master determining the greatest common factor (GCF) of a set of numbers with this inviting worksheet!

Finding the Greatest Common Factor #3

What treasure will you find at the end of these rainbows? Factor pairs, of course!

Rainbow Factors #1

This worksheet is the rational choice for practicing your skills with rational and irrational numbers!

Compare Rational and Irrational Numbers

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