Operations on Integers

When adding integers, if the signs are DIFFERENT you...

• Add the numbers

• Subtract the absolute values and take the sign of the biggest number

• Multiply the numbers

• Take the absolute value of the numbers

When multiplying or dividing a NEGATIVE and NEGATIVE number your result will be...

• POSITIVE
• NEGATIVE
• DEPENDS ON WHICH NUMBER IS LARGER.

When multiplying or dividing a NEGATIVE and POSITIVE number your result will be...

• Positive
• Negative
• Depends on which is bigger.

What is the sign of the quotient if we divide

 $\left(90\right)\div\left(-5\right)$  

• negative

• positive

• neutral

• none of the above

What is the sum of (-3) + (-8) ?

• (11)

• (-11)

• 5

• (-5)

What is the sum of (-9) + (-4) ?

• 5

• -5

• 13

• -13

What is the difference of $\left(-5\right)-\left(7\right)$  ?

• -2

• 2

• 12

• -12

Give the difference of (-10) - (-2).

• 12

• -12

• 8

• -8

Multiply (-3) (-5)

• (-8)

• (8)

• (15)

• (-15)

Multiply: (-4) (7)

• -28

• 28

• 11

• -11