Lesson 25. Unit 3. Grade 4 EngageNY

This Problem Set is a part of the Lesson 25, Unit 3, Grade 4. In this lesson, students cross out multiples from 1-100 to find primes, and in doing so students notice properties of prime and composite numbers.

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Lesson 22. Unit 3. Grade 4. EngageNY

Lesson 23. Unit 3. Grade 4. EngageNY