Prime and Composite Numbers: Hidden Number #1

Learn to differentiate between prime and composite numbers with this fun worksheet! Fourth-grade students will shade in the prime numbers on the chart to reveal a hidden larger number. Then, students will indicate whether this uncovered number is prime or composite.

This skill is a crucial milestone that strengthens students’ foundation in basic multiplication and division facts. Understanding prime and composite numbers sets the stage for more advanced mathematical concepts, such as identifying the greatest common factor (GCF), determining the least common multiples (LCM), and performing prime factorization.

For more practice with prime and composite numbers, check out Identifying Prime Numbers Maze and Factors of Prime and Composite Numbers #1.