T102 CHAP7 & 8 REVIEW SPRING 2013

T102 CHAP7 & 8 REVIEW SPRING 2013 -...

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T102 Chapter 7 & 8 REVIEW This review is only a sampling of possible exam questions. You should be sure to review NOTES, HOMEWORK, QUIZZES, and any other class materials. Be sure to use your calculator sparingly as many of these review questions may be on the NON - CALCULATOR portion of the exam. NC means ʺ No Calculator ʺ 1) Rewrite 4 · 10 3 + 3 · 10 - 3 as a decimal. NC 2) Write 21.034 in words. NC 3) Mentally determine whether each of the following represent terminating decimals. Answer YES or NO. Explain your answer . NC a. 7 12 b. 17 5 2 · 2 3 c. 12 15 4) Find the next three terms for the following sequence 0.3, 1.4, 2.5, 3.6, 4.7, _____, ______, _____ 5) Convert 3.4 x 10 - 6 to standard numerals. NC 6) Perform the indicated operation and write your answer in scientific notation . NC (7 x 10 - 3 )(6 x 10 - 5 ) 7) Round each of the following numbers as specified. NC a. 406.792 to the nearest hundredths. b. 406.792 to the nearest ten. 8) Use long division to find the following quotient. DO NOT USE YOUR CALCULATOR. SHOW ALL WORK . 232.2 ÷ 4.5 9) Rewrite as a terminating decimal. 3 16 NC 10) Write the terminating decimal as a fraction. 7.9 NC 11) Rewrite the following in expanded form. NC 9.000738 12) WITHOUT USING A CALCULATOR multiply the following. Show all work. Explain how your decimal placement in your answer. 3.78 x 7.4. 13) Convert each of the following fractions to their decimal forms WITHOUT YOUR CALCULATOR. a. 4 11 b. 7 40 c. 4 21 14) Place < , > , or = in the space between each of the following pairs to make true statements. NC a) 4.45 _______ 12 b. 2.9 _________ 3 c. 5. 8 9 _______ 5.8 9 15) Stephanie want to buy some camera equipment to take pictures on her daughter ʹ s birthday. To estimate the total cost, she rounds each price to the nearest dollar and adds the rounded prices. What is her estimate for the items listed below? Show how you arrived at your answer. NC CAMERA $7 5.8 0 FILM 5.6 5 CASE 2 2. 8 9 BATTERY 1 5.8 9 T102 Chapter 7 & 8 Review Page 1
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16) Convert each of the following rational numbers to the form a b , where a and b are integers and b 0. Show work to justify your answer. NC a. 0.2 9 b. 0.5 6 c. 0.4 5 d. - 2.4 83 17) Rewrite as a numeral. Three thousand and twenty - two hundred - thousandths 18) Write each of the following in the simplest form a n b , where a and b are integers, and b has the least value possible. NC a. 120 b. 3 81 19) If the following letters correspond to the sets listed in the table below, complete the following table by placing checkmarks in the appropriate columns. NC Number N I Q R S - 4 5.8 6 2 1 4 20) Susie ʹ s Bicycle shop advertised a bicycle for 15% off for a savings of $24. The bicycle did not sell so it was offered at a new 20% discount off the sale price. a. What did the bicycle sell for regularly? b. What is the amount of the new discount?
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