Solving Integers

( - 12) + ( - 43) + 38 =

( - 13) + 21 + ( - 17) =

( - 63) + 171 =

( - 17) - ( - 19) - 21 =

A submarine is submerged at 20 feet below the surface. The submarine is now  descending at a rate of 120 feet per minute. Which integer represents the position of the submarine after 3 minutes?

• • -20 feet below the surface

• -380 feet below the surface

• -360 feet below the surface

23 - 47 + 18 - (-12) =

• 6

• -18

• 56

A submarine is submerged at 20 feet below the surface. The submarine is now  descending at a rate of 120 feet per minute. Which integer represents the position of the submarine after 3 minutes?

• • -20 feet below the surface

• -380 feet below the surface

• -360 feet below the surface

280 - ( - 105) =

( - 45) - ( - 63) - 97 =

• 9

• 6

• -9

• -6