Integer Math Whiz

3 + (-7)=

• -4

• 4

• -10

• +3

-5 + 8 =

• 3

• -3

• -13

• 12

-10+12=

• 2

• -2

• -22

• 32

-4+6=

• +2

• -2

• -10

• +10

If I am subtracting integers, I need to change the problem to addition by ​ ​ (a)   ​ the ​ (b)   ​

• opposite

• subtracting

• same sign

• adding

Match the following

• 3

• -2 + 10

• -12

• -16 +4

• 8

• 10 + (-7)

• -8

• -4 - 4

• 12

• 5 - (-7)

Match the following with the correct operation and sign of the answer.

• subtract, positive

• -717 + 927

• add, negative

• -762 + (-481)

• subtract, negative

• -1239 + 904

• add, positive

• 3 + 5

When you subtract a negative number we add its ​ ​ (a)   .

• opposite

• inverse

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

-8+12=

• +4

• -4

• -20

• +20