Talisa opened a checking account with a deposit of $25. During the next two weeks, she wrote checks for $20 and $15 and made a deposit of $30. Find the balance of the account.

One over par is represented by +1 and one under par is represented by -1. In the 1999 US Open, Tiger Woods had scores represented by -2, +1, +2 and 0. What was his final score?

On a famous TV game show, contestants earn money for each correct answer and lose money for each incorrect answer. Suppose a contestant answered questions worth $100, $200 and $400correctly but answered questions worth $300, $300 and $400 incorrectly. What was the contestant’s score?

During one school year, 23 new students moved into a school district and 52 students moved out of the school district. Find the change in the number of students resulting from these moves.

The record high temperature for St. Paul, MN is 108 degrees Fahrenheit. The record low temperature is 142 degrees lower. What is the record low temperature?

A scuba diver descends at a rate of 40 feet per minute. How far does the scuba diver descend in 8 minutes?

The Wildcats football team had a gain of 8 yards on their first run. They lost 4 yards on their second run, gained 12 yards on the third and lost 2 yards on the fourth. What was the total yards lost or gained in the first four runs?