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

Help students build their number sense as they practice finding the least common multiple (LCM) in this helpful practice worksheet.

Find the greatest common factor (GCF) using the prime factorization method with this sixth-grade practice worksheet!

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

Grow students’ math skills with more practice finding the greatest common factor by using factor trees to find the prime factorization.

Students continue to hone their understanding of how to find the least common multiple in this math practice worksheet! 

Use this number theory worksheet to practice finding the greatest common factor of two numbers by finding the prime factorization!