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Pregunta 53

What is the value of -4 - (-9)?

  1. -13, the two magnitudes combined
  2. 13, since two minus signs make a plus
  3. 5, because taking away a negative raises the valueRespuesta correcta
  4. -5, keeping the sign of the first term

Explicación

Removing -9 lifts the value by nine, so the position climbs from four steps below zero, through zero, to five steps above it. A value of -13 combines the two magnitudes under a minus sign, which is what -4 + (-9) would give rather than the removal of a negative amount.

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Pregunta 53: What is the value of -4 - (-9)? · Integers and Negative Numbers · Questena