Adding and Subtracting Negative Numbers

28 + (-30)

• -2

• 2

• 58

• -58

(-40) + (-39)

• 1

• -1

• 79

• -79

-8 + (-10) + 8

• 26

• -26

• -10

• 10

12 - (-3)

• 15

• 9

• -15

• 36

-8+4

• -4

• -12

• 4

• 12

-9 + 3

• -6

• -12

• 0

• 5

-90 + -56

• -56

• 47

• -34

• -146

-12 + -9

• 6

• -21

• -3

• 11

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

numbers that are less than zero and located to the left of zero on the number line

• positive numbers

• negative numbers

• integers

• signed numbers