G7 - Relate Integers, their opposites, and absolute value

Relate Integers, their opposites, and absolute value

Some text here about the topic of discussion

​When preparing for a rocket launch, the mission control center uses the phrase “T minus” before liftoff.

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…T minus 3, T minus 2, T minus 1, …

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After the rocket has launched, “T plus” is used while the rocket is in flight.

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…T plus 1, T plus 2, T plus 3, …

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When does the rocket launch? What could “T” represent?

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