Unit 1 Module 1 and 2

1.

3 points

When her elevator was out of service, Lacy walked down 21 flights of stairs. She stopped to rest after every 3 flights of stairs. How many times did Lacy stop to rest?

-31

-63

7

18

2.

3 points

During a football game, the visiting team was given 4 penalties for 15 yards each. What was the change in the visiting team's field position due to these penalties?

-80 yards

-60 yards

-90 yards

-11 yards

3.

3 points

Which of the following situations involve opposite quantities combining to make 0?

Joe makes 1 and 1/2 liters of lemonade and drinks it all during the afternoon.

Devon opens a new checking account with $30. His first purchase, made with his new debit card, totals $28

Brittany is writing a novel. She wrote 4 new pages to finish Chapter 1. When she reviews Chapter 1, she discards these 4 pages and an additional 4 pages.

Stella has a new piggy bank. She adds 3 quarters on Tuesday, and then adds another 3 quarters on Thursday.

4.

3 points

Georgina works on the 30th floor of an office building. She took the elevator to the cafeteria on the 7th floor how many floors did she travel?

30

23

37

7

5.

3 points

Divide. Express your answer in simplest form.
1/6 divided by 1/3. (see your paper)

2

1/2

1/9

1/18

6.

3 points

Which of the following is always the result of dividing an integer by an integer when the divisor is nonzero?

Integer

Rational Number

0

Whole Number

7.

3 points

At 6 A.M. the temperature was -5 degrees Celsius. In the afternoon, the temperatures was 10 degrees Celsius. What was the hang of temperature during the day?

-15 C

10 C

-5C

15 C

8.

3 points

Find the product of -6 x 8.

-48

2

-2

48

9.

3 points

Kelsey's bank charge her $17.50 for using her debit card at ATMs that are not owned by her bank 7 times in the last month. What is the interpretation of the quotient -$17.50/7 = -$2.50?

Kelsey earns $2.50 each time she uses her debit card at an ATM that is not owned by her bank.

Kelsey's bank loses $2.50 each time Kelsey uses her debit card at an ATM that is not owned by her bank

Kelsey is charged $2.50 each time she uses her debit card at an ATM that is not owned by her bank.

Kelsey is charged $17.50 each time she uses her debit card at an ATM that is not owned by her bank

10.

3 points

A stock lost $2.25 of its value each day for 5 consecutive days. What is an interpretation of the product -$2.25 x 5?

The stock lost $0.45 per day

The stock lost $11.25 per day

The stock lost $11.25 over the 5 day period

The stock lost $7.25 over the 5 day period

11.

3 points

Which of the following expressions has the greatest value?

-3 - (-4) - (-2)

-3 + (-4) - (-2)

-3 - (-4) - 2

-3 + (-4) - 2

12.

3 points

What is an equivalent expression for 2/3 - 4/5?

2/3 + 4/5

_2/3 + (-4/5

2/3 + (-4/5)

-2/3 + 4/5

13.

3 points

Which sum does the number line on your paper represent?

-11 + (2)

-11 + (-9)

-11 + 9

-11 + (-2)

14.

3 points

What is the sums of -15 and -125?

140

115

-140

-115

15.

3 points

Find the product 4 x (-3)

1

12

-12

-7

16.

3 points

Each hole in a golf course is assigned a number of strokes that a player should need to make to complete the hole. If a hole is par -3, then a player who completes the hole with 5 strokes gets a score of 2 and a player who completes the hole in two strokes gets a score of -1. A player then adds the scores for each hole on the course to find the score for the game. Half way through a game of golf, a player has a score of three under par. Write an integer to represent this situation. Then find the additive inverse of the integer, and tell what it represents.

Integer: -3,Additive Inv: 3. the additive inverse represents how many strokes the player can take and still complete the game in the assigned number of strokes

Integer: 3 Additive Inverse: -3. The additive inverse represents how many extra strokes the player can take and still complete the game in the assigned number of strokes

Integer: -3, Additive Inv: 3. The additive inverse represents how many strokes below par the player must remain and still complete the game in the assigned number of strokes.

Integer: 3, Additive Inv: -3 The additive inverse represents how many strokes below par the player must remain an still complete the game in the assigned number of strokes.

17.

3 points

Multiply. Express your answer in simplest form.
4(1 2/3)

5 2/3

4 2/3

4

6 2/3

18.

3 points

A submarine started at the surface of the water and was moving down at -20 kilometers per minute toward the ocean floor. The submarine traveled at this rate for 50 minutes before coming to rest on the ocean floor. What is the depth of the ocean floor?

-988

-1000 kilometers

30 kilometers

-1012 kilometers

19.

3 points

Find the sums 0.75 + (-0.68)

0.07

-0.07

-1.43

1.43

20.

3 points

A submarine's elevation is -14 feet relative to sea level. A shark is swimming at an elevation of -56 feet. What is the difference in elevation between the submarine and the shark?

56 feet

42 feet

70 feet

60 feet