 What name would you give each table?  How would you fill in the missing numbers?  What patterns do you see in the tables?

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 What name would you give each table?  How would you fill in the missing numbers?  What patterns do you see in the tables?

Investigation 1A Sections 1.01-1.05

 How many numbers are there between zero and ten?

 How would you show the number 3?  How would you show the number -2?  How can a number line help you do math?  We will discuss number lines in more detail in Investigation 1B.

 What is the opposite of 5?  What is the opposite of -5?  “Negative” means the same as “opposite of.”

 Represented by a capital ℤ

 Commutative Property: ◦ Order of addition does not matter  Associative Property: ◦ When you add more than two numbers, the way you group them does not matter.  Additive Identity: ◦ When you add zero to any number, the result is the number itself. ◦ The number 0 is the additive identity.

 Commutative Property: ◦ Order of multiplication does not matter  Associative Property: ◦ When you multiply more than two numbers, the way you group them does not matter.  Multiplicative Identity: ◦ When you multiply 1 by any number, the result is the number itself. ◦ The number 1 is the multiplicative identity.

 Read Investigation 1A (pages 8-31)  Page 33 #1-8  Read Investigation 1B (pages 34-52)

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