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Question 13

On a number line drawn with values increasing to the right, which is the greater value, 1 or -100?

  1. -100 is greater, because 100 is a bigger number than 1.
  2. They cannot be compared, because -100 has more digits than 1.
  3. Neither is greater, because one is positive and one is negative.
  4. 1 is greater, because it stands to the right of -100 on the number line.Correct answer

Explanation

Order follows position along the line, and every positive value stands to the right of every negative one however many digits the negative carries. Ranking 100 above 1 compares magnitudes, and for a negative value a larger magnitude only pushes the mark further left and lower; counting digits measures the length of a numeral, which settles nothing about where the value stands.

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