Integer Unit Test

1. The record low temperature in Springfield through 1997 was 40°𝐹 below 0. The record high temperature was 100°F. Write each temperature as an integer.

A) 40, -100
B) 40, 100
C) -40, -100
D) -40, 100

A) 15
B) !-15!
C) +15
D) -15

A) !-6!
B) -6
C) -20
D) 20

A) -8
B) 8
C) 7
D) -(8)

A) 7-23
B) 20-(-2)
C) -5-13
D) -9-(-9)

A) -13-(-16)
B) -16-(-11)
C) 19-16
D) 1-(-2)

7. A mine worker is in a tunnel 15 feet below the ground. He descends another 8 feet. What is his final position?

A) -23
B) 7
C) -7
D) 23

8. A roller coaster begins at 45 feet above ground level. Then it descends 52 feet. Find the height of the coaster after the first descent.

A) 97
B) 7
C) -97
D) -7

A) -13
B) -19
C) 3
D) 19

A) 2
B) -1
C) -11
D) 11

11. A scuba diver is swimming at a depth of -8 feet. She dives down to a coral reef that is at three times this depth. What is the depth of the coral reef?

A) 24
B) -24
C) !-11!
D) -11

A) 14
B) 0
C) -14
D) -0

A) -15
B) 15
C) -125
D) 125

A) 10
B) 11
C) 7
D) 25

A) -81
B) -12
C) (-3)⁴
D) 81

A) -5
B) 5
C) 2
D) -2

A) 8
B) 6
C) -8
D) -6

18. The Bobcats football team gained 15 yards on their first play then lost 9 yards on the next play. Write an addition expression to represent this situation. Find the sum and explain its meaning.

A) 15 + 9
B) 15+(-9)
C) 15 + 9
D) -15 +(-9)

A) -40
B) -48
C) 48
D) 40

A) 4
B) -4
C) -8
D) !-8!

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