Mission 5 - Rational Numbers Unit Test Review

The average surface temperature on Jupiter is -142°F. The average surface temperature on Saturn is 77°F less than on Jupiter. What is the average surface temperature on Saturn?

• 65 °F

• -65 °F

• 219 °F

• - 219 °F

-5 + 7 + _ = 0

Match the following expressions to their correct value

• 3

• 6 - 9

• -15

• - 6 - 9

• 13

• 6 + 9

• -3

• 7 - (-6)

• 15

• - 6 + 9

A scuba diver is swimming at 

24 feet below sea level.  What is 

his elevation after swimming up 24 feet?

• -24 feet

• 0 feet

• -48 feet

• 48 feet

Mrs. Y pays a car payment each month out of her bank account.   At the end of the year, her bank account changed by - $4320.

What is her monthly car payment? (There are 12 months in a year)

• $360

• $432

• $120

• $12

Simplify:

(3)(-4) – (-18) ÷ (- 3)

• - 18

• 10

• - 6

• - 30

Rewrite this subtraction expression using addition:

- 47 - 65

• -47 + 65

• -47 + -65

• 47 + 65

• 47 + - 65

Simplify the following expression: 

7 – 3(5 + 8)

• 42

• - 12

• - 32

• - 26

Which situation results in a final value of zero?

• The depth of scuba diver swims at -10 feet and descends another 10 feet.

• The height of an airplane after ascending 35000 feet from the ground.

• The temperature after a decrease of 8 degrees from - 8 degrees.

• The distance above sea level after increasing 20 feet from a depth of 20 feet below sea leel.

If the temperature at 8 am was -8 degrees Celsius and rose 7 degrees Celsius by noon, what was the temperature at noon?

• 15 degrees Celsius

• -15 degrees Celsius

• -1 degree Celsius

• 1 degree Celsius