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Rational Numbers, Opposites, and Absolute Values
Rational Numbers
Integers 2
100
A worker in a silver mine descends 36 feet. Use an integer to represent the change in the​ worker's position.
-36
100

22.43 - 4.07

18.36

100

-18-27 =

-45

200

Which of these situations can be represented by the opposite of −77? 

a. You walk down 77 flights of stairs. 

b. You climb up 77 flights of stairs. 

c. The temperature drops 77°F. 

d. You spend $7 on a book.

b. You climb up 77 flights of stairs.

200
Find the value of the expression 6.9+(−2.6).
4.3
200

84 - (-92) =

176

300
Two submarines are underwater. The number −4,451 represents Submarine​ A's position​ (in feet) relative to the surface. The number −4,979 represents Submarine​ B's position​ (in feet) relative to the surface. Which submarine is closer to the​ surface?
Submarine A
300

−9.3−6.5

-15.8

300

-142 - (-63) = 

-79

400

Which of these situations can be represented by the opposite of 66? Select all that apply.

a. A book was 66 pages shorter than you expected. 

b.Andrew spent $66. 

c. The temperature was 66°F. 

d. Jennifer sold 66 apples.

a. The book was 66 pages shorter than you expected

b.  Andrew spent $66 

d. Jennifer sold 66 apples

400

7.85 - (-31.03) = 

38.88

400

488 + (-594) =

-106

500
In a recent​ year, the number of DVDs shipped to an online retailer was 84,000 less than the previous year. Use an integer to describe the change in the number of DVDs shipped.
-84,000
500

-206.14 + 131.78

-74.36

500

-1,294 + -8,324 = 

-9,618