Add, Subtract, Multiply And Divide Integers

1. T or F A negative number multiplied by a negative number is a positive number.

True

False

2. Using the same multiplication grid and answer the following: What is the value of the box labled "o?"

12

-8

-16

32

3. T or F When multiplying 2 integers, if the signs are different, the answer is negative.

True

False

4. (-2 x 12) ÷ (-5 + 1) = _______

-6

6

8

-8

5.

-2

2

4

12

6. What are the 2 numbers if - - The sum is -15. The difference is -5. The product is 50.

Answer: _______ and _______

10 and 5

-10 and -5

15 and -1

-2 and -25

7. Fill in the chart below (like we did in class). Choose the answer that represents blanks 1, 3, and 5 correctly.

7, 6, 11

-7, -14, -21

7, 14, 21

-7, -6, -11

8. Fill out the multiplication grid and answer the following: What is the value of the box labled "b?"

10

20

8

12

9. (-2 + -4 – 6 + 14) ÷ (-2) = _____

0

1

10

-1

Submit

12.

One day, Tom kept up with the amount of fishing line he dropped in order to find out how deep most fish were located. He started out with his hook at the end of 12 feet of line. He caught 1 fish. Then he sent his hook 9 ½ feet deeper and caught 2 more fish. He brought the hook up 6 ½ feet and caught 3 fish. He dropped it back down 3 ½ feet and caught 4 fish. He reeled the hook back up 2 feet and caught 7 fish. How deep was Tom’s line when he caught the most fish?

15 feet underwater

17 feet underwater

13.5 feet underwater

16.5 feet underwater

13. (14 – 2 - 11) x (-5 + -5) = ______

0

-10

35

-12

Submit

15.

A prominant civilization in history reigned for 128 years. The civilization ended in 126 B.C. Seventy-five years before it ended, it discovered how to make paper from the papyrus plant. In what year did the civilization originate, and in what year did they discover how to make paper?

It originated in 245 B.C., and they discovered paper in 211 B.C.

It originated in 262 B.C., and they discovered paper in 212 B.C.

It originated in 248 B.C., and they discovered paper in 203 B.C.

It originated in 254 B.C., and they discovered paper in 201 B.C.

Submit

17.

“The Mile-high Mineshaft” is a roller coaster ride that has some of its’ track underground, and other parts are high above ground. Use the graph below to determine if more time is spent on the roller coaster above ground or below ground.

% Ride Time   Vertical Location
10%             10 feet above ground
5%               At ground level
25%             25 feet below ground
25%             35 feet above ground
15%             15 feet below ground
10%             25 feet above ground

5% more time is spent above ground.

5% more time is spent below ground.

The time spent above and below ground is equal.

Unable to tell.

18. Using the same multiplication grid and answer the following: What is the value of the box labled "j?"

1

2

-2

-1

19. Fill in the chart below (like we did in class). Choose the answer that represents blanks 3, 4 and 5 correctly.

-8, -3, -11

8, 10, 18

-8, -5, -13

8, 11, 19

20.

An expedition group of 7 men and women set out to climb Mt. Everest. The summit is 29,029 feet above sea level. Because of altitude sickness, Bill and Sue had to stop climbing 11, 544 feet from the summit. Tammy and Robert were able to climb 2, 315 more feet, and then they, too, got sick and had to stop. The rest of the group continued, but they all had to stop after climbing 987 feet further than Tammy and Robert because of blizzard conditions. How close were the remaining members to reaching the summit?

6,000 feet

2, 543 feet

8,242 feet

9,122 feet