Adding Subtracting Negative Numbers

-12 + -9

• 6

• -21

• -3

• 11

7 - 9

• 2

• -2

-4 - 2

• -2

• -6

• 2

• 6

5 + -2

• 3

• 7

• -3

• -7

7 - -3

• 4

• 10

• -4

• -10

-20 - 2

• 22

• 18

• -18

• -22

3 + -7

• 10

• 4

• -10

• -4

-2 - (-8)

• 6

• -6

• -10

• 10

28 + (-30)

• -2

• 2

• 58

• -58

If the temperature in Chicago is -5 degrees and the temperature in Moscow is 8 degrees colder. What is the temperature in Moscow?

• -3 degrees

• -13 degrees

• 3 degrees

• 13 degrees