By Glenda Lappan, James Fey, William Fitzgerald, Susan Friel, Elizabeth Philips

ISBN-10: 0131656341

ISBN-13: 9780131656345

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Extra info for Bits And Pieces III

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56 ft2 b. 6 ft2 c. 56 ft2 Extensions Find the products. 46. 2 3 32 31 40 Bits and Pieces III 47. 34 48. 7 49. a. Write a fraction equivalent to 23 without decimals. 6 b. Write a fraction equivalent to 4 without decimals. c. 6 product of 23 3 4 . 50. Fill in the blanks and put a decimal point where needed to make the calculation complete. 196 51. 2 to 5. 4 is 2. 2 3 100 instead. 4, can you tell whose estimation is closer to the exact answer? 52. Explain why you do not have to align the decimal points when multiplying two decimal numbers.

N 42. 88 cm 43. qxd 5/27/05 3:11 PM Page 49 In this investigation, you looked at the relationship between division of fractions and division of decimals. You also looked at patterns in decimal divisions that give the same answers. Finally, you looked at patterns in terminating and repeating decimal representations of fractions. The following questions will help you review and organize what you have learned. Think about your answers to these questions. Discuss your ideas with other students and your teacher.

The following questions will help you review and organize what you have learned. Think about your answers to these questions. Discuss your ideas with other students and your teacher. Then write a summary of your findings in your notebook. 1. Describe a way to write a division problem that has the same answer as a given decimal division problem but has a whole number dividend and divisor. Use an example to help explain. 2. Describe an algorithm for dividing decimals. Tell why you think the algorithm works.