Integer Operations Pretest

3 + -7

• 10

• 4

• -10

• -4

-14 + (-3)

• -17

• 11

• -11

• 17

(-24) - (-8)?

• -32

• 32

• -16

• 16

5 - (-12)

• -7

• 7

• 17

• -17

A submarine was 1800 ft below sea level. It dove another 1500 feet deeper. Which integer represents its location?

• -300

• -1300

• -3300

• 300

Match the following

• 3

• -2 + 10

• 8

• -16 +4

• -12

• 5 - (-7)

• -8

• -4 - 4

• 12

• 10 + (-7)

In a class test, +4 marks were awarded for the correct answers and -1 mark for the wrong answers. Student scores 40 marks. If his correct answers were 11, find his wrong answers.

• 2

• 4

• 6

• 8

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

• opposite

• inverse

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

• subtract, negative

• -1239 + 904

• add, negative

• 3 + 5

• subtract, positive

• -762 + (-481)

• add, positive

• -717 + 927

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