UNIT Integer Review Starts 09/04/2014 ends 09/17/2014 - Mrs. Stewart At Home Learning Activities – All HW is to be done on loose leaf with the proper heading. (see tstewartmath.weebly.com) All work must be clearly shown. Redraw any diagrams that you need to in order to correctly show the work. Triumphs Book 1 A. pg 14 # 7 - 14 Find the sum. Note the text makes reference to algebra tiles, you can draw counters instead. B. pg. 16 # 23 - 34 C. pg . 17 # 35 - 47 D. pg 23 # 1 - 6 Integers & Absolute Value TEMPERATURE 1. The low temperatures for three consecutive days were –5°F, 3°F, and 4°F. Graph this set of integers on a number line. ELEVATIONS 2. The lowest elevation in New Orleans, Louisiana, is –8 feet. The lowest elevation in Long Beach, California, is –7 feet. Graph this set of integers on a number line. E. pg 24 # 7 - 15 F. pg 25 # 16 - 28 G. pg 26 # 29 - 37 H. pg 30 # 3 - 9 I. pg 31 # 10 - 22 J. pg 32 # 23 - 32 K. pg 34 # 1 - 8 L. pg 35 # 9 - 21 M. pg 38 # 37 - 44 Practice for Test pg 40 - 47 Solar System 3. The average temperature of saturn is -218ºF while the average temperature of Jupiter is -162⁰F. Which planet has the lower average temperature? Explain. 4. BUSINESS Ms. Solorio’s small business had a profit of $460 on Monday. Write an integer to represent this profit. 5. CAVING The end of a cave is 380 meters below the surface of the earth. Write an integer to represent this depth. UNIT Integer Review Starts 09/04/2014 ends 09/17/2014 - Mrs. Stewart At Home Learning Activities – All HW is to be done on loose leaf with the proper heading. (see tstewartmath.weebly.com) Integer Operations Adding Integers Subtracting Integers Temperature Drop 6. In one hour, the temperature dropped 2 degrees. In the next hour, the temperature dropped an additional 3 degrees. a. What integer represents the total temperature change over these two hours? b. Write an addition expression that describes this situation. c. Suppose the temperature rose 4 degrees in the third hour and dropped 1 degree in the fourth hour. Write an addition expression to represent the temperature change over all four hours. d. What integer represents that change? e. Mode the temperature change on a vertical number line. True or False 7. Let n = any number . Then -n is always a negative number. Explain your claim. If true provide evidence, if false provide a counter claim. Gophers 11. A gopher begins at 7 inches below the surface of a garden and digs another 9 inches. Find the integer that represents the gopher’s position in relation to the surface of the garden. Construct Viable Argument 8. Explain how you know the sum of 5, 4, and -5 is positive without actually adding. Make sure to use appropriate math vocabulary in your explanation as well as detailing your reasoning. Creating a problem 9. Create a real-world problem that can be solved using the number line below. Computation 10. Find the sum. Model the equations using either counters or a number line. a) 10 + (-3) + 3 b) -15 + 8 + (-9) c) 8 + (-11) + (-19) + 11 d) -7 + (-1) + 7 e) -6 + (-2) + 14 f) 13 + 20 + (-17) + (-13) Finances 12. Suppose you deposited $25 into your checking account and wrote a check for $38. What was is your account balance? Scores 13. At the end of hte first round of a game show, Julian had a score of 40 points and Marty had a score of -50 points. Find the difference between the two scores. Write the expression you would use to solve this problem. Multiple Representations 14. An underwater video camera is 7 feet below the surface. It will be lowered an additional “f” feet. a. Write an equation to show how many total feet below the surface the camera will be after it is lowered. b. Make a table to show the depth of the camera if it is lowered 5, 8, 10, or 12 feet. True or False 15. A subtraction expression with a positive integer and a negative integer can have a difference of zero. Explain your claim. If true provide evidence, if false provide a counter claim. Computation 16. Find the difference. Model the equations using either counters or a number line. a) 6 - 7 b) -20 - (-30) c) 1 - (-18) d) 5 - (-10) e) 4 - 8 f) 15 - (-14) UNIT Integer Review Starts 09/04/2014 ends 09/17/2014 - Mrs. Stewart At Home Learning Activities – All HW is to be done on loose leaf with the proper heading. (see tstewartmath.weebly.com) Multiplying Integers Dividing Integers Airplanes Climbing 17. An airplane descends at a rate of 175 feet per 22. Rappelling is one way climbers descend rocks minute. What is the airplane’s change in altitude and mountains. A climber was at an elevation of after 5 minutes? Write an expression to help 800 feet above sea level. Five minutes later, the you solve this problem and then solve. climber was at elevation of 755 feet above sea level. Elevators a. What was the climber’s change in 18. An elevator takes passengers from the ground altitude? floor down to an underground parking garage. b. Suppose the climber descended the Where will the elevator be in relation to the same number of feet each minute. ground floor after 5 seconds if it travels at a rate Write an expression to determine the of 3 feet per second? number of feet the climber descended each minute. Evaluate your expression Investments to find the rate. 19. The price of stock fell $2 each day for 14 consecutive days. The original price of the stock For each of the following three questions was $41. I. Write an expression to represent the situation a. Write an expression that you could use II. Evaluate the expression to find the price of hte stock on any day. III. Interpret the meaning of the solution based on b. What is the price of the stock after the the situation end of the 14th day? Debt 23. Jean owes her parents $90, to be paid in 5 equal Trivia installments. How much is each installment? 20. Two groups were playing a trivia game. Each team earned 5 points for every correct answer, Temperature lost 8 points for every incorrect answer, and lost 24. The temperature dropped a total of 40⁰F over an 2 points for every passed question. For each 8 hour period. What was the mean hourly team, write an expression to determine the temperature drop? number of points they earned. Which team won? Show your work. Savings 25. In October, the full price of a television is $695. Over the next seven months, the price of hte television drops a total of $140. How much did Team Correct Incorrect Passed hte price of the television drop each month on average? A 12 3 1 B 13 2 7 Computation 26. Evaluate each expression a. 28 ÷ (− 14) Computation 21. Evaluate each expression. a) 10n, if n = -10 d) -5 • 10s if s = -5 b. -36 ÷ (-2) c. n −13 , if n = -130 b) 8m, if m = -3 e) 4xy, if x = -6 and y = 3 c) -15st, if s = 4 and t = -9 f) (11a)(7c), if a =-2 and c = 3 d. −6a b , if a = -4 and b = -2 e. -2st ÷ (-3t), if s = 9 and t = -1
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