Subtracting Integers

The temperature at the beginning of the day was 6 degrees F. The temperature dropped 9 degrees F by the end of the day. What was the temperature at the end of the day?

• 3

• -3

• 15

• -15

Simplify:
(-20) - (-8)

• -28

• 28

• -12

• 12

Evaluate:
(-2) - (-3)

• -1

• -5

• 5

• 1

What are the rules for subtracting integers?

• Change to multiplication and use the opposite of the second number.

• Change subtraction sign to addition and use the opposite of the second number.

• Find the opposite of both numbers and then add. 

• Subtract like normal and keep the larger sign. 

(-87) - (-31) = 

• -56

• 56

• 111

• -111

Solve the problem.
-16 - 4

• -20

• -12

• 20

• 12

Solve the problem.
5 - 8

• 3

• -3

• 13

• -13

Solve the problem.
-100 - 52

• -152

• 48

• -48

• 152

Solve the problem.
-42 - (-12)

• -30

• -54

• 30

• 54

Solve the problem.
-4 - 10

• -4

• 4

• 14

• -14