Rational Numbers 1

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

Which of these situations can be represented by the opposite of 4?

• You climb up 4 flights of stairs.
• You walk down 4 flights of stairs.
• The temperature rises 4⁰F.
• A plant grows 4 inches taller.

Find the sum of   5 + (−4)

• 9
• −9
• 4
• 1

Which of the following are sums of additive inverses?

• 8+8
• 8+0
• 8+(−8)
• −8+(−8)

−28+(−8)=

• 36
• −36
• −20
• 20

⅗+(−⅕)=

• ⅖
• −⅖
• ⅘

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

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

Find −2¼−3⅞

• 1⅝
• −1⅝
• −6⅛