Adding and Subtracting Rational Numbers Review

Find the difference.

-2.9 - (-1.95)

Evaluate the expression.

4 - (-5)

Find the sum.

-7/4 + 5/8

Find the sum.

-7.33 + (-7.6)

Find the sum.

-6 + (-1)

Find the sum.

-16 + 5

Order the values from least to greatest.

|-4.3| 4.6 2.7 |-3 1/2| |1.2|

• |1.2| , 2.7 , |-3 1/2| , |-4.3| , 4.6

• |-4.3| , |-3 1/2| , |1.2| , 2.7 , 4.6

• |-3 1/2| , |1.2| , 2.7 , |-4.3| , 4.6

• 4.6 , |-4.3| , |-3 1/2| , 2.7 , |1.2|

At midnight, the temperature is 34 degrees Fahrenheit. The temperature decreases 3 degrees each hour until 2:00 am. The temperature then increases 2 degrees each hour until 7:00 am. What is the temperature at 7:00 am?

Find the sum.

-2/5 + (-7/5)

Find the sum.

-9.2 + 5.4