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) 7
C) -8
D) 8

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

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

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

A) 7
B) -7
C) -23
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) -7
B) -97
C) 97
D) 7

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

A) 2
B) 11
C) -1
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) 0
B) -0
C) 14
D) -14

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

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

A) -81
B) (-3)⁴
C) 81
D) -12

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

A) 6
B) 8
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) -48
B) 48
C) 40
D) -40

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

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