Lesson 8

Multiplication at the Zoo

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Task

Students may create a factor tree to find the prime factors for 90. Trees will vary.

  1. 90 = 2 × 3 × 3 × 5


  2. 66 = 3 × 2 × 11

DD. Finding Prime Factors

  1. Write 90 as the product of prime numbers. Show how you solved the problem.
  2. Write 66 as a product of prime numbers. Use a factor tree.