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Question 48

What is the value of 6 + (-15)?

  1. 21
  2. 9
  3. -9Correct answer
  4. -21

Explanation

Fifteen steps to the left from 6 use six of them to reach zero and nine more beyond it, so the total finishes below zero. Reporting 9 subtracts the magnitudes correctly but keeps the sign of the smaller one, which puts the result on the wrong side of zero.

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Question 48: What is the value of 6 + (-15)? · Integers and Negative Numbers · Questena