Integer Operations

A diver at sea level needs to dive to a depth of -2,200 feet in 10 minutes. Which integer best represents the diver's rate?

• -22,000 ft per min

• -220 ft per min

• 22,000 ft per min

• 220 ft per min

Which of the following is NOT equivalent to -12?

I. 36/-3

II. -4 - (-16)

III. (-3)(-4)

IV. 9 - 21

• I only

• II and III only

• II, III, and IV only

• I, II, III, and IV

On Wednesday, the temperature dropped an average of 4 degrees per hour. Which integer represents the change in temperature from 10AM to 2PM?

• -20 degrees

• 1 degree

• -16 degrees

• 12 degree

Choy has $25 in his lunch account at school. He spends $3 each day to eat in the cafeteria. What is Choy's lunch account balance after two weeks of buying his lunch in the cafeteria?

• $19

• $5

• -$19

• -$5

Simplify the following expression.

-6 + 5 ⋅ 2

• 8

• 4

• -2

• -16

During the first round of a game, Ravi had a score of -27 points. He earned 35 points in the second round. What was Ravi's score after the second round?

• 8

• -8

• 62

• -62

Which of the following expressions simplifies to -1?

I. -39 - 38

II. -1 ⋅ -1

III. 19 + (-20)

IV. -16/-16

• I and III only

• III only

• I, III, and IV only

• I only

By noon, the temperature increased 21 degrees from the morning low of -13 degrees. What was the temperature at noon?

• 21 degrees

• 8 degrees

• 34 degrees

• 12 degrees

Jackson went deep sea diving with some friends. If he descends at a rate of 30 feet per minute, what integer represents Jackson's depth after a quarter of an hour?

• -750 ft

• -300 ft

• -450 ft

• -900 ft

What expression has the least value?

• -7 x (-9)

• 44 - 74

• -91 + 68

• 126 ÷ -6