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Home > CCA > Chapter 8 > Lesson 8.2.1 > Problem 8-59

8-59.
  1. What is special about the number zero? Think about this as you answer the questions below. Homework Help ✎

    1. Find each sum:

      0 + 3 =

      −7 + 0 =

      0 + 6 =

      0 + (−2) =

      Zero standing at a microphone.

    2. What is special about adding zero? Write a sentence that begins, “When you add zero to a number, …”

    3. 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?

    4. Find each product:

      3 · 0 =

      (−7) · 0 =

      0 · 6 =

      0 · (−2) =

    5. What is special about multiplying by zero? Write a sentence that begins, “When you multiply a number by zero, …”

What did you notice about each of the answers in part (a)?

When you multiply a number by zero, … the result is always 0.