Lesson 8.2.1 R&P 8-58 to 8-63 (skip 8-61)

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8-59) a. What is special about the number zero? Think about this as you answer the questions below.

Find the sum:

0+3=

8-59) a. What is special about the number zero? Think about this as you answer the questions below.

Find the sum:

-7+0=

8-59) a. What is special about the number zero? Think about this as you answer the questions below.

Find the sum:

0+6=

8-59) a. What is special about the number zero? Think about this as you answer the questions below.

Find the sum:

0+(-2)=

8-59) b. What is special about adding zero?

• It gives you a product of 1.

• It gives you a sum of 0.

• It gives you the same number out that you added to 0.

8-59) c. Julia is thinking of two numbers a and b. When she adds them together, she gets a sum of b. Does that tell you anything about either of Julia’s numbers?

• It tells you that a must be 1.

• It tells us that b has to be 0.

• It tells us that a must be 0.

• It tells us b must be 1.