Unit 1B Test Review

1. Unit 1B Test Review Multiplying and Dividing Rational Numbers

2. Get Ready • Grab a white board, marker, and eraser • Take out a clean sheet of paper and number it #1-20 (This is where you will record the number of questions you get right) • Put a check next to the number if you get it correct • Put a X next to the number if you get it wrong

3. Learning Target I will determine my strengths and weaknesses for my Unit 1B Test tomorrow.

4. Question 1 Multiply.

5. Question 2 Divide. A) 5.125 B) 0.5125 C) 5.11 D) 82

6. Question 3 Select the problem and solution represented in the diagram below. 5 (-2) = 10 -5 · (2) = -10 5 · (-2) = -10 -5 · (2) = 10

7. Question 4 Eunice withdraws $15.00 from her savings account each month. What integer represents the net effect on her balance after 5 months? $3 -$3 $75 -$75

8. Question 5 Which of the following shows a correct application of the distributive property?

9. Question 6 A diver is swimming at sea level (0), when he suddenly sees a shark and quickly dives under water. He dives 5 meters in one second. He continues to descend for 11 seconds. Which integer represents his final position? • -16 • 16 • -55 • 55

10. Question 7 Brittney is running on a track that is of a mile long. So far she has run of the way around the whole track. How far has she run so far? -

11. Question 8 -2 3 -3 2

12. Question 9 It took a submarine 4 seconds to drop 48 feet below the surface of the water. If it descended at a constant rate, what was the change in the submarine’s elevation each second? A) -192 feet per second B) -12 feet per second C) 12 feet per second D) 192 feet per second

13. Question 10

14. Question 11 At the beginning of the month, Leslie’s lunch account has a balance of $50.40. If lunch costs $3.15 per day, for how many days will Leslie be able to purchase lunch before her account runs out of money? 14 days 15 days 16 days 17 days

15. Question 12 2

16. Question 13 Bob ate 1/8 of a pie after dinner. Which decimal is equivalent to - ? • -1.8 • 0.18 • -0.125 • 0.125

17. Question 14 Which number below represents a repeating decimal?

18. Question 15 Solve. -25 ÷ 3 =

19. Question 16 In Antarctica on a certain day, the temperature was -90° C. On the same day in Russia, the temperature was -30° C. How many times colder was it in Antarctica than in Russia? A) -93 B) -3 C) 3 D) -2, 700

20. Question 17 At the fall festival the tennis team is selling hamburgers for $2.00, hotdogs for $1.50 and drinks for $1.00. Half of the money raised will go towards the purchase of team uniforms. If they sell 31 hamburgers, 34 hotdogs, and 65 drinks, how much money will they have to put towards the purchase of uniforms? A) $178 B) $79 C) $89 D) $130

21. Question 18 A recipe for muffins needs ¾ of a cup of milk. You are making ¼ of the recipe. How much milk do you need? A) B) C) D)

22. Question 19 Marley is making hamburgers for the entire 7th grade. He has 50pounds of ground beef. How many pound hamburgers can he make using all the ground beef? A) 153 B) 23 C) 209 D) 151

23. Question 20 (Short Answer) Tony slipped during his first jump so he only jumped 3feet. He jumped three times that distance on his second jump. His third jump was 12 feet. Calculate the distance of his second jump. Short Answer : 9

24. Connect It! Take out your study guide and circle the questions you missed “X” on the practice test. You have now identified your weaknesses “X” and your strengths “ “ by taking the practice test. This should help guide your studying time tonight!