3rd and 4th Grade Common Core Number Theory Worksheets

Find factor pairs of two-digit numbers with this fourth-grade math worksheet!

With this worksheet, your child will be learning about factors, and they'll be getting multiplication practice as they go.

Students build their number sense by finding the multiples of whole numbers in this fourth-grade math worksheet!

Give students practice identifying prime numbers with this fun this maze activity!

Students practice solving a variety of equations, then determine if the answer is a prime number.

From multi-digit subtraction to identifying prime numbers, assess each student’s mastery of a variety of fourth-grade math skills.

Does your child know the difference between a prime number and a composite number? Help them learn the difference with this simple worksheet.

Students practice identifying prime numbers, regular polygons, and irregular polygons!

Children practice identifying factors with the help of a factor tree in this multiplication worksheet.

Students will match a product to its factor tree and list of prime factors in this interactive activity.

Introduce your child to factor trees with this simple algebra worksheet.

What is a prime number? A number is prime when it is only divisible by 1 and itself. Help your little mathematician recognize prime numbers.

Think about the importance of determining the factors of a product.

Use your multiplication skills to find factors of 60 and better understand time.

This worksheet gives students practice identifying multiples of a number.

Give your child prime number practice with this simple worksheet.

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.

Use these vocabulary cards with the EL Support Lesson: The Factor Tree Strategy.

Use this glossary with the EL Support Lesson: Multiples and Skip Counting.

Use these vocabulary cards with the EL Support Lesson: Multiples and Skip Counting.

Use these vocabulary cards with the EL Support Lesson: Conversations About Prime and Composite Numbers.

Use this glossary with the EL Support Lesson: The Factor Tree Strategy.

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

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

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

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

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

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

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

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