Adding or Subtracting Signed Numbers

If you are adding 2 negative numbers, will your answer be positive or negative?

• negative

• positive

-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

33 + (-38)

• -5

• 5

• 71

• -71

-6 + 9

• -3

• 6

• -6

• 3

-10 + 10

• 20

• 0

• -20

• 1,000,000

Will the sum of 8 + (-9) be positive or negative?

• positive

• negative

Will the sum of -4 + -7 be positive or negative?

• positive

• negative

Mr. Lovell was playing cards with his son. In the first round he earned 52 points. In the second round he lost 20 points. How would you write this as an addition problem?

• 52 + 20

• -52 + -20

• 52 + -20

• -52 + 20