Question

A contestant scores -100 points in the first round, -250 points in the second round, and 500 points in the third round. Find the contestants total number of points. Explain your reasoning.

Answer 1

The contestants total points is 150. My reasoning is that 100 + -250 = - 350, and -350 + 500 = 150 points.

Answer 2

-100 the end of first round;
-100-250= -350 at the end of second round;
-350+500= 150 points at the end of third round.