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Positive and Negative Numbers Accentuate the Negative: Investigations 1.1 & 1.2 Name: ______________________________________________________ Period: ________ For questions 1-4, describe a sequence of five correct or incorrect answers that would produce each Math Fever score. Write a number sentence for each. Possible point values are 50, 100, 150, 200, and 250. 1. Smarty Pants: 300 2. Super Brains: -250 3. Mathletes: -200 4. Pi: 0 5. Which numbers are listed from least to greatest? A. 300, 0, -200, -250 B. -250, -200, 0, 300 C. 0, -200, -250, 300 D. -200, -250, 300, 0 For questions 6-7, find each Math Fever team’s score. Then, write a number sentence for each team. Assume each team is starting with 0 points. 6. 7. Total Score: __________ Total Score: __________ Number Sentence: ______________________ Number Sentence: __________________ 8. Plot and label each rational number on the number line: 1 , 2 -1.25, − 6 2, 4.5, -5.5 9. Order the numbers from least to greatest: 23.6, -45.2, 50, -0.5, 0.3, 3 -4 , 5 5 For questions 10 – 18, insert <, >, or = to make each statement true. 10. 3 13. -75 11. -23.4 0 - 16. -1.73 90 - 1.730 14. 1 2 17. -300 23.4 0.5 100 12. -4 - 4.0 15. -1,000 18. 46 - 999 - 79 For questions 19-20, identify which number is further from +1. Explain your reasoning. 19. -7 or +3 _______________________________________________________________ _________________________________________________________________________ 20. -10 or +11 _______________________________________________________________ _________________________________________________________________________ For questions 21-23, identify the number that’s halfway between each pair of numbers. (You may want to draw a number line) 21. -23 and +23 22. -9 and +10 23. +20 and -10