k@HH(FG(HH(d'@xxxLll J Unit A Name ______________________ I Study Sheet Period ____________________ J Pgs. 15-25 Date ______________________   ANSWER  ALL  QUESTIONS  AND  ON  YOUR  OWN  PAPER ! 1. What is a mixed number? 2 2. A fraction is what kind of math problem? [ 3. Why does the text have you use parentheses around "3-4" in the problem 5 3/4? d 4. Write the two rules you need to remember for a scientific calculator with parentheses.  a.  b. I 5. How can you be sure that 1 1/4 and 1.25 are the same. Explain. H 6. How many methods does the text have you practice in Example 5? 4 7. Which one did you like best? Explain why. m 8.  Estimate the number of inches JoAnn will need for her shelf. What is the estimate? d 9. What is the exact number of inches (rounded to 2 decimal places) that JoAnn will need? l 10. If the lumber yard sells the shelving only in 8-foot lengths, how many boards will JoAnn need?  11. In Example 6, what is your answer (to the second problem) rounded to two decimal places to the right of the decimal point? h 12. What answer do you get to this problem? 12 + 3 divided by 4 X 1 + 2 divided by 3 equals. / 13. What is your answer to the following:  a. 6 2/3 - 3 1/3 =  b. 12 3/4 - 1 2/3 = 5 14. What is your estimated answer to Example 7? 1 15. What is your exact answer to Example 7? ~ 16. What answer do you get if you forget to use the parentheses in this problem? $10.00 - ($2.73 + $5.87 + $0.56) = &  OVER - 17. Show your answers to the following:  a. 20.5 x 3.1416 =  b. 0.002 x 178.3 =  c. 39.2 - 57.6 =  d. 7.8 - 0.012 = L 18. Practice with you calculator. Show your answers to ALL questions.  19. The order in which you enter the numbers in you calculator  does   make  a  difference when you are doing these things:  a.  b.  c.  d.