Add and subtract integers

5 - (-9) =

3 - (-3) =

-18 + 12

8 - 12- (-6) =

#32) Mount Everest is 29,028 feet above sea level. The bottom of the Mariana Trench is 36,070 feet below sea level. What is the difference between these two elevations?

• 65,098 ft

• -65,098 ft

• 7,042 ft

• -7,042 ft

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. 

-34 + 50

-16 + (-18)

-7 - (-12)

• 5

• -5

• 19

• -19

Melody had to make a visit to the bank because her account was overdrawn by $32.  After making a deposit of $100, Melody was now happy that she had some money. How much money did she have after making the deposit?

• $100
• -$78
• $68
• $32