A hiker is at an elevation of 150 meters above sea level. He descends 200 meters. What is his new elevation?

Jane gained 25 points in the first round of a game. In the second round she lost 40 points and on the third round she gained 10 points. Write and evaluate an expression to find how many points Jane gained or lost.

Jamie has $50 in her bank account. After spending $75, what is her account balance?

The temperature changed from 5 degrees C at 6 p.m. to -2 degrees C at midnight. How much did the temperature decrease?

A diver is at a depth of 30 meters below the surface of the water. If he ascends 15 meters, what is his new depth?

1. At 3 p.m., the temperature was 9 degrees F. By 11 p.m., it dropped 31 degrees F. What was the temperature at 11 p.m.?

A stock gained 2 points on Monday, lost 5 points on Tuesday, lost 1 point on Wednesday, gained 4 points on Thursday, and lost 6 points on Friday. How much was the gain or loss?

The temperature in the morning is -2°C. By the afternoon, it rises by 8°C. What is the temperature in the afternoon?

A helicopter flying 120 m above sea level detects a submarine. If the submarine is 39 m below sea level, what is the vertical distance between the helicopter and the submarine?

Tina wrote a check for $35 on Monday. On Tuesday she made of withdrawal of $60 and on Wednesday she deposited $75. What is the change in Tina’s account after the three days?

A football team starts the game with 10 points. They lose 5 points due to penalties and then score another 12 points. What is their current score?

The bank of a company has an overdraft facility. Its balance for yesterday was −$390. The company deposits $600 into the account today and it will withdraw $450 tomorrow. Find the balance in the account today.