What is an Integer?
Which correctly defines an integer?
A) Integers are the whole numbers and their opposites (... -3, -2, -1, 0, 1, 2, 3...)
B) Integers are the counting numbers (1, 2, 3, 4, 5... )
C) Integers include zero and the counting numbers (0, 1, 2, 3,4, 5...)
D) Integers can be decimals, fractions, whole numbers and their opposites.
A) Integers are the whole numbers and their opposites (... -3, -2, -1, 0, 1, 2, 3...)
Find the absolute value of the following: |−25|
A) −25 C) 5
B) −5 D) 25
D) 25
Solve. 8 + (−15) = ____
A) 23
B) −23
C) −7
D) 7
C) −7
Find the quotient: −11 ÷ 11 = ____
A) 0
B) −10
C) 1
D) −1
D) −1
An elevator is on the 25th floor. It went down 4 floors and then back up 6 floors. On what floor is the elevator now on?
Write an expression for the situation:__________________________
The elevator is now on which floor:_______________
The expression for the situation is: 25-4+6
The elevator is now on the 27th floor.
True or False: The further to the left an integer is on the number line the bigger it is.
B) FALSE. The further to the left, the smaller in value the integer is.
Which of the following correctly compares the two numbers?
A) 126 < -200
B) −59 > −62
C) −438 < −4,380
D) 1,390 > 1,930
B) −59 > −62
Solve. −(−15) + (−8) = ____
A) −23
B) −7
C) 7
D) 23
C) 7
Find the product: −7(4)
A) −3
B) −21
C) −28
D) 28
C) −28
Mrs. Bates went to a garage sale and bought 5 shirts for her daughter at $2 each. What integer would describe how much money Mrs. Bates has spent after buying the shirts for her daughter?
The integer that can be used to represent how much money Mrs. Bates has spent is -10.
Mrs. Bates spent $10.
Which of the following is NOT an integer?
A) 9 C) 22.4
B) −188 D) 0
C) 22.4
Integers are NOT decimals or fractions.
Use >, <, or = to compare the following integers:
−|−79| ____ −|79|
A) >
B) <
C) =
D) none of these
C) =
Solve. −37 + (−5) = ____
A) 42
B) −42
C) 32
D) −32
B) −42
Which of the following describes the value of the product when a negative integer is multiplied by a positive integer?
A) Greater than zero.
B) Less than zero.
C) Equal to zero.
D) It can be any of the above.
B) Less than zero.
On a winter day in Southaven, Mississippi, the temperature was recorded to be at a low of 33 degrees.
On the same day in Newport, Vermont, the temperature was recorded at a low of −20 degrees.
Write an expression for the situation:__________________________
The difference between the two temperatures is:_______________
The expression that can be used is: 33 - (-20)
The difference between the two temperatures is 53 degrees.
Which of the following IS an integer?
A) 3/4
B) −0.25
C) 3.01
D) 7
D) 7
Integers are WHOLE numbers, positive or negative.
Which of the following set of integers is correctly ordered from least to greatest?
A) −4, −9, −19, 1, 20
B) 13, 6, 4, −1 ,−5
C) −11, −7, 4, 8, 16
D) −4, −6, 4, 7, 12
C) −11, −7, 4, 8, 16
An airplane left Jackson, Mississippi where the temperature was 42° F. When the airplane landed in Anchorage, Alaska, the temperature had dropped 50°. What was the temperature in Anchorage?
A) 8° F
B) −8 °F
C) −12 °F
D) 92° F
B) −8 °F
Which of the following describes the value of the quotient when a negative integer is divided by a negative integer?
A) Greater than zero.
B) Less than zero.
C) Equal to zero.
D) It can be any of the above.
A) Greater than zero.
In the early nineteen hundreds, it was recorded in the town of Nome, Alaska that the temperature dropped 4° every hour for 5 straight hours. If the starting temperature was -7 degrees, what was the final temperature?
The expression used is: -7 - 5(4)
The final temperature is -27 degrees.
The chart lists class averages over a course of 3 years.
Year. 1st Semester Average 2nd Semester Average
2010 85 79
2011 80 74
2012 82 77
Describe as an integer the change in 2nd Semester averages between 2011 and 2012.
A) 5 C) 3
B) −5 D) −3
C) 3
The average went UP 3 points (From 74 to 77), so it is POSITIVE 3.
The weather channel recorded temperatures in the following cities:
Fargo, ND −33°
Hibbing, MN −19°
Bozeman, MO −21°
Wasilla, AL −14°
Which of the following orders the cities with temperatures from coldest to warmest?
A) Wasilla, Hibbing, Fargo, Bozeman
B) Fargo, Wasilla, Bozeman, Hibbing
C) Wasilla, Hibbing, Bozeman, Fargo
D) Fargo, Bozeman, Hibbing, Wasilla
D) Fargo, Bozeman, Hibbing, Wasilla
Terry has $43 in a checking account. If Terry writes a check for $62, what is the new account balance?
A) −105
B) 105
C) 19
D) −19
D) −19
From the surface of the ocean, a sting ray descends 100 feet in 2 minutes. At this pace, where would the sting ray be in 5 minutes?
A) −250 feet
B) −200 feet
C) −1000 feet
D) −500 feet
A) −250 feet
Evaluate the following expression where x = -7, y = -6, and z = 2.
z + (xy)
The expression would be equal to 44.