# Maureen Curran and Mary Lou Aalbers Hazelwood School District ACTIVITY #1.

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Maureen Curran and Mary Lou Aalbers Hazelwood School District ACTIVITY #1

These lessons will be addressing the following state standards: Develop, analyze, and explain procedures for computation and techniques for estimation. (MO 2.3, 3.3) Check and explain the reasonableness of solutions strategies, and results. (MO 1.7, 3.3, 3.7, 4.1) Select appropriate methods of computation, such as mental arithmetic, estimation, calculator, computer, and paper/pencil to reflect upon solutions, strategies, and results. (MO 3.3, 3.6, 3.7)

Teacher Page You will need to click the mouse to show the answers for activities. This will allow you to control the timing of answers shown. We suggest that students keep a journal and respond to questions in this presentation. It is critical for students to use writing skills to explain their answers. Please take time to discuss possible solutions to problems.

Riddle me this and riddle me that You can solve riddles…just like that! I am a prime number. I am an odd number. I am more than 6. My digits add up to 4. What number am I???

Riddle me this and riddle me that You can solve riddles…just like that! What number am I??? 13

Mystery Numbers Revisited If you count by fives, I have two left over. I am a multiple of 7. The sum of my digits is an even number. Whats the Mystery Number?? I am a composite number.

Mystery Numbers Revisited If you count by fives, I have two left over. I am a multiple of 7. The sum of my digits is an even number. Whats the Mystery Number?? 77 I am a composite number.

Mystery Numbers Revisited Now its YOUR turn! List five clues for your mystery number in your journal. Give to a partner to see if they can solve it. 1. 2. 3. 4. 5.

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