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geometry

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Trina rounded to the nearest whole number to solve the expression eighteen point nine minus eleven point four. Her steps are shown below. Which statement correctly describes her error?

eighteen point nine minus eleven point four
eighteen point nine is approximately equal to nineteen and eleven point four is approximately equal to twelve, so
eighteen point nine minus eleven point four is approximately equal to nineteen minus twelve which is approximately equal to seven.

  • geometry -

    11.4 is approximately = to 11 NOT 12.
    19 - 11 = 8.

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