SKIP TO CONTENT
Worksheet Generator
Subjects
Grades
Worksheets
Games
Build a Worksheet
More Resources
Roly Recommends
Subjects
Grades
Worksheets
Games
Build a Worksheet
More Resources
Roly Recommends
All Subjects
Math
Number Theory
Subtopics:
Factors and Multiples
Prime and Composite Numbers
Rational and Irrational Numbers
Show Less
Filters
Search for: then
✕
Math
✕
Common Core
✕
Subjects
Math
English Language Arts
Science
Social Studies
Grade Level
Pre-K
K
1st
2nd
3rd
4th
5th
6th
7th
8th
Early Childhood
Elementary School
Middle School
Resource Type
Worksheets
Games
Interactive Worksheets
Occasion
Fall
Halloween
Holidays
Common Core
Yes
See More
Clear All
View 25 results
Showing Results for then
25 results
Search for: then
✕
Math
✕
Common Core
✕
Clear All
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
All filters
25 results
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
Which Numbers Are Prime?
Worksheet
Which Numbers Are Prime?
Fourth Grade
Number Theory
Students practice solving a variety of equations, then determine if the answer is a prime number.
Worksheet
Which Numbers Are Prime?
Worksheet
Which Numbers Are Prime?
Students practice solving a variety of equations, then determine if the answer is a prime number.
Fourth Grade
Number Theory
Worksheet
Find the Greatest Common Factor By Prime Factorization #1
Interactive Worksheet
Find the Greatest Common Factor By Prime Factorization #1
Fifth Grade
Number Theory
Use this number theory worksheet to practice finding the greatest common factor of two numbers by finding the prime factorization!
Interactive Worksheet
Find the Greatest Common Factor By Prime Factorization #1
Interactive Worksheet
Find the Greatest Common Factor By Prime Factorization #1
Use this number theory worksheet to practice finding the greatest common factor of two numbers by finding the prime factorization!
Fifth Grade
Number Theory
Interactive Worksheet
More Amaz-ing Hexagons!
Worksheet
More Amaz-ing Hexagons!
Fourth Grade
Number Theory
This multi-part worksheet helps students practice identifying the differences between regular and irregular hexagons while also reviewing their knowledge of composite and prime numbers.
Worksheet
More Amaz-ing Hexagons!
Worksheet
More Amaz-ing Hexagons!
This multi-part worksheet helps students practice identifying the differences between regular and irregular hexagons while also reviewing their knowledge of composite and prime numbers.
Fourth Grade
Number Theory
Worksheet
Jumpy: Which Factor Does Not Belong?
Game
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?
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
Factors of Prime and Composite Numbers #2
Worksheet
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
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
Factors of Prime and Composite Numbers #1
Worksheet
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
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
Practice Finding the Least Common Multiple
Interactive Worksheet
Practice Finding the Least Common Multiple
Sixth Grade
Number Theory
Students build their number sense as they practice finding the least common multiple of whole numbers in this two-page math worksheet.
Interactive Worksheet
Practice Finding the Least Common Multiple
Interactive Worksheet
Practice Finding the Least Common Multiple
Students build their number sense as they practice finding the least common multiple of whole numbers in this two-page math worksheet.
Sixth Grade
Number Theory
Interactive Worksheet
Real Numbers: Always, Sometimes, Never
Worksheet
Real Numbers: Always, Sometimes, Never
Eighth Grade
Number Theory
Give students a chance to demonstrate their understanding of real numbers with unique math worksheet!
Worksheet
Real Numbers: Always, Sometimes, Never
Worksheet
Real Numbers: Always, Sometimes, Never
Give students a chance to demonstrate their understanding of real numbers with unique math worksheet!
Eighth Grade
Number Theory
Worksheet
Approximations of Square Roots on Number Lines
Worksheet
Approximations of Square Roots on Number Lines
Eighth Grade
Number Theory
Practice finding rational approximations for irrational square roots in this eighth-grade math worksheet!
Worksheet
Approximations of Square Roots on Number Lines
Worksheet
Approximations of Square Roots on Number Lines
Practice finding rational approximations for irrational square roots in this eighth-grade math worksheet!
Eighth Grade
Number Theory
Worksheet
Halloween Hidden Picture: Classify Real Numbers
Worksheet
Halloween Hidden Picture: Classify Real Numbers
Eighth Grade
Number Theory
Engage students this fall season with this Halloween-themed hidden picture math puzzle featuring an array of real numbers.
Worksheet
Halloween Hidden Picture: Classify Real Numbers
Worksheet
Halloween Hidden Picture: Classify Real Numbers
Engage students this fall season with this Halloween-themed hidden picture math puzzle featuring an array of real numbers.
Eighth Grade
Number Theory
Worksheet
Prime Factorization
Worksheet
Prime Factorization
Sixth Grade
Number Theory
Boost your learner's understanding of number theory and prime and composite numbers with this sixth-grade math worksheet all about factorization!
Worksheet
Prime Factorization
Worksheet
Prime Factorization
Boost your learner's understanding of number theory and prime and composite numbers with this sixth-grade math worksheet all about factorization!
Sixth Grade
Number Theory
Worksheet
Rational and Irrational Numbers: True or False
Worksheet
Rational and Irrational Numbers: True or False
Eighth Grade
Number Theory
Learners determine if each statement about rational and irrational numbers is true or false in this eighth-grade math worksheet!
Worksheet
Rational and Irrational Numbers: True or False
Worksheet
Rational and Irrational Numbers: True or False
Learners determine if each statement about rational and irrational numbers is true or false in this eighth-grade math worksheet!
Eighth Grade
Number Theory
Worksheet
Rainbow Factors #1
Worksheet
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
Worksheet
Rainbow Factors #1
What treasure will you find at the end of these rainbows? Factor pairs, of course!
Fourth Grade
Number Theory
Worksheet
Prime, Composite, and Factoring Fun
Worksheet
Prime, Composite, and Factoring Fun
Fourth Grade
Number Theory
Practice identifying factors with this beach-themed worksheet for fourth graders!
Worksheet
Prime, Composite, and Factoring Fun
Worksheet
Prime, Composite, and Factoring Fun
Practice identifying factors with this beach-themed worksheet for fourth graders!
Fourth Grade
Number Theory
Worksheet
GCF and LCM: Crack the Code
Worksheet
GCF and LCM: Crack the Code
Sixth Grade
Number Theory
Give your learners practice finding the greatest common factor (GCF) and the least common multiple (LCM) with this fun code-breaking worksheet!
Worksheet
GCF and LCM: Crack the Code
Worksheet
GCF and LCM: Crack the Code
Give your learners practice finding the greatest common factor (GCF) and the least common multiple (LCM) with this fun code-breaking worksheet!
Sixth Grade
Number Theory
Worksheet
Rainbow Factors #2
Worksheet
Rainbow Factors #2
Fourth Grade
Number Theory
Practice with prime and composite numbers in this colorful fourth-grade worksheet!
Worksheet
Rainbow Factors #2
Worksheet
Rainbow Factors #2
Practice with prime and composite numbers in this colorful fourth-grade worksheet!
Fourth Grade
Number Theory
Worksheet
Rainbow Factors #3
Worksheet
Rainbow Factors #3
Fourth Grade
Number Theory
List factor pairs with this bright fourth-grade math worksheet!
Worksheet
Rainbow Factors #3
Worksheet
Rainbow Factors #3
List factor pairs with this bright fourth-grade math worksheet!
Fourth Grade
Number Theory
Worksheet
Greatest Common Factors: Color by Code
Worksheet
Greatest Common Factors: Color by Code
Sixth Grade
Number Theory
Finding the greatest common factor is great fun in this color by numbers worksheet!
Worksheet
Greatest Common Factors: Color by Code
Worksheet
Greatest Common Factors: Color by Code
Finding the greatest common factor is great fun in this color by numbers worksheet!
Sixth Grade
Number Theory
Worksheet
Factor Rainbows: Find the Greatest Common Factor
Worksheet
Factor Rainbows: Find the Greatest Common Factor
Sixth Grade
Number Theory
Identify the greatest common factor of two numbers with this colorful sixth-grade worksheet!
Worksheet
Factor Rainbows: Find the Greatest Common Factor
Worksheet
Factor Rainbows: Find the Greatest Common Factor
Identify the greatest common factor of two numbers with this colorful sixth-grade worksheet!
Sixth Grade
Number Theory
Worksheet
Find the Greatest Common Factor Using an Area Model
Worksheet
Find the Greatest Common Factor Using an Area Model
Sixth Grade
Number Theory
Use the concept of area to help find the greatest common factor in this sixth-grade worksheet!
Worksheet
Find the Greatest Common Factor Using an Area Model
Worksheet
Find the Greatest Common Factor Using an Area Model
Use the concept of area to help find the greatest common factor in this sixth-grade worksheet!
Sixth Grade
Number Theory
Worksheet
Find the Greatest Common Factor By Prime Factorization #3
Interactive Worksheet
Find the Greatest Common Factor By Prime Factorization #3
Fifth Grade
Number Theory
Find the greatest common factor (GCF) using the prime factorization method with this sixth-grade practice worksheet!
Interactive Worksheet
Find the Greatest Common Factor By Prime Factorization #3
Interactive Worksheet
Find the Greatest Common Factor By Prime Factorization #3
Find the greatest common factor (GCF) using the prime factorization method with this sixth-grade practice worksheet!
Fifth Grade
Number Theory
Interactive Worksheet
Probability: The First 100 Digits of Pi
Worksheet
Probability: The First 100 Digits of Pi
Seventh Grade
Number Theory
Students build number sense while finding the probability of randomly selecting each digit in the first 100 digits of pi in this engaging math worksheet!
Worksheet
Probability: The First 100 Digits of Pi
Worksheet
Probability: The First 100 Digits of Pi
Students build number sense while finding the probability of randomly selecting each digit in the first 100 digits of pi in this engaging math worksheet!
Seventh Grade
Number Theory
Worksheet
Finding the Least Common Multiple #2
Interactive Worksheet
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
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
Math Mixed Review Part 1: Flying Through Fourth Grade
Worksheet
Math Mixed Review Part 1: Flying Through Fourth Grade
Fourth Grade
Mixed Operations
From multi-digit subtraction to identifying prime numbers, assess each student’s mastery of a variety of fourth-grade math skills.
Worksheet
Math Mixed Review Part 1: Flying Through Fourth Grade
Worksheet
Math Mixed Review Part 1: Flying Through Fourth Grade
From multi-digit subtraction to identifying prime numbers, assess each student’s mastery of a variety of fourth-grade math skills.
Fourth Grade
Mixed Operations
Worksheet
Least Common Multiple: Part 3
Interactive Worksheet
Least Common Multiple: Part 3
Fifth Grade
Number Theory
Help students build their number sense as they practice finding the least common multiple (LCM) in this helpful practice worksheet.
Interactive Worksheet
Least Common Multiple: Part 3
Interactive Worksheet
Least Common Multiple: Part 3
Help students build their number sense as they practice finding the least common multiple (LCM) in this helpful practice worksheet.
Fifth Grade
Number Theory
Interactive Worksheet
1