Rational Number Operations

- 9 + 7

• -2
• 2
• 16
• -16

A negative number multiplied by a positive number will equal ________.
(-) x (+) = ???

• 0
• a positive number.  (+)
• a negative number.  (-)
• a fraction.

-20/5=

• -4
• 4
• -100
• 100

-5 - (-4)

• 1
• -1
• 9
• -9

6 - 12 = 

• 6
• -6
• -18
• 18

A negative number multiplied by another negative number will equal ________.
(-) x (-) = ???

• 0
• a positive number.  (+)
• a negative number.  (-)
• a fraction.

-3(-4)

• -12
• 7 
• -7
• 12

When adding or subtracting integers, how do you know if the answer will be positive or negative?

• You take the sign of the first number in the problem.

• You take the sign of the number with the greatest absolute value.

• You take the sign of the second number in the problem.

• Your answer will always be positive when adding and negative when subtracting.