Question

The manager of a pet store monitors the number of fish added to or removed from a tank each day over a seven-day period. Each number in the list represents the change in the number of fish in the tank for a day during that week.

positive 8, negative 6, positive 2, negative 5, negative 1, positive 3, negative 6.

What number represents the total change in the number of fish in the tank?

Answer 1

-5

(The tank had a net loss of 5 fish: 8 - 6 + 2 - 5 - 1 + 3 - 6 = -5.)