Adding Rational Numbers

- 12 + - 8

• - 20
• 20
• 4
• -4

- 87 + -36

• 123
• -123
• 55
• -55

7.19 + (-5.34)

• 12.53
• -12.53
• 1.85
• -1.85

2/4 + -5/4

• -7/4
• 3/4
• -3/4
• -7/8

Mrs. Byrne is at her house. She gets in her car and drives north 3.4 miles and stops at Target. Then she turns around and drives south 6.1 miles to go to Mrs. Mangini's house. How far is Mrs. Byrne's house from Mrs. Mangini's house?

• 9.3 miles
• 2.7 miles
• 3.3 miles

In his garden Tim plants a tomato seed 5¼ inches below the ground. After one month the tomato plant has grown a total of 11½ in. How many inches is the plant above the ground?

• 16¾ inches
• 6½ inches
• 6¼ inches

A worker in a silver mine descends 60 feet. Use an integer to represent the change in the worker's position.

• 60
• −60 feet
• 60 feet
• −60

During a football game, Ryan had rushes of 12 yards, 6 yards, and 9 yard before losing 7 yards on a play.  How many total yards did he gain during the game?

• 33 yards
• 27 yards
• 20 yards
• He did not gain any yards.

The air temperature in the North Pole in the morning was 3 degrees Celsius.  By 10:00am the temperature dropped 12 degrees.  By noon the temperature had gone up 5 degrees.  At 3:00pm the temperature went up 9 degrees.  By nightfall the temperature had dropped 16 more degrees.  What was the temperature at the North Pole at nightfall?

• 11 degrees
• 0 degrees
• -11 degrees
• -9 degrees

Mr. Smith has an account balance of -$275.78.  He deposits $539.20 into his account.  What is Mr. Smith's account balance now?

• $813.98
• $263.42
• $539.78
• $345.98