Multiplying and Subtracting Integers

What would your answer by when you multiply two numbers with different signs? For example: -5(8) =

• Positive

• Negative

True or False: The answer to the equation -10(-5) is positive.

• True

• False

What is the rule when subtracting integers? For example: 13 - (-12) =

• Keep the signs and add

• Same, Change, Change

• A positive times a negative is a negative

• Same, Same, Change

Which operations do the following rules work for: Signs of two numbers are different, answer is negative Signs of two numbers are the same, answer is positive

• Addition

• Subtraction

• Multiplication

• Division

4(-20)

• 80

• -80

• 24

• -24

(-7)(-7)

• 14

• -14

• 49

• -49

(-9)(-8)

• -72

• 72

• 17

• -17

-7+-7=

• -14

• 14

• 0

• 1

-2 - (-10) = ?

• -12

• 12

• 8

• -8

-7(10)=

• 70

• 700

• -70

• -700