Mrs. Holt wants to buy a toy for $49. She has a coupon for 10 dollars off. Use the expression 49 + (-10) to find how much money she spent on the toy.

3+(-9)=

It was 78 degrees in Grand Forks yesterday. The temperature dropped 12 degrees overnight. Using this information what would the temperature in Grand Forks be today?

-6-5=

Christian runs down a hill 30 feet. Gavin runs 17 feet further down the hill than Christian. Use the expression (-30) + (-17) to find out Gavin's location on the hill.

-99+99=

75-(-30)=

(-5)+(-27)=

62-(-8)=

9+(-8)=

25+(-15)=

A mountain climber climbs 23 feet up Mount Everest. Use an integer to represent how far the climber will need to travel to return to where he started.