Exercise 57

Select the correct word to make each statement true.

  1. A positive number minus a positive number is

    • sometimes

    • always

    • never

    negative.

  2. A negative number plus a negative number is

    • sometimes

    • always

    • never

    negative.

  3. A positive number minus a negative number is

    • sometimes

    • always

    • never

    positive.

  4. A negative number multiplied by a negative number is

    • sometimes

    • always

    • never

    negative.

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