Simplify using the order of operations. 23) 5 8 1 12 3 16 24) 2 1 4 8a 1 2 1 3 b 25) a 1 9 2 a b 3 2 4 b Solve the problem. 26) Stephanie is trying to repair a bare spot in her lawn. She buys a rectangular grass seed blanket to lay over the spot. The grass seed blanket is 3 1 4 ft long and 1 1 2 ft wide. a) Find the area of the grass seed blanket. b) Find the perimeter of the grass seed blanket. Use the pie chart for Exercises 27–30. Calvin has 2400 songs on his MP3 player. The pie chart shows the fraction of music in each category. 27) What fraction of Calvin’s music is hip hop or rock? 28) How many reggae songs are on Calvin’s MP3 player? Alternative Reggae Rock 29) What fraction of music is not classifi ed as alternative? 30) How many songs are not classifi ed as alternative? Chapter 4: Cumulative Review for Chapters 1–4 Add, subtract, multiply, or divide as indicated. 1) 458 327 76 2) 6435 4709 3) 628 509 4) 2515,042 Round each number to the nearest ten, nearest hundred, and nearest thousand. Ten Hundred Thousand 5) 675 6) 58,399 7) A group of 9 lottery players share a winning ticket that is worth $4,007,106 after taxes. If the money is divided up evenly, how much will each person receive? Simplify each expression using the order of operations. 8) 46 4179 15 4 3 181 9) 42 22 114 62 2 10) Add the like fractions. First, shade the fi gures appropriately to represent each fraction and the resulting sum. Then, use a number line to demonstrate the operation. 1 8 1 5 4 8 Perform the indicated operations. 11) 14 15 8 25 12) 7 10 1 6 13) 5 7 8 6 3 4 14) 5 12 18 15) 20 27 14 11 9 28 For Exercises 16–18, answer true or false. 16) If two fractions have the same numerator, the fraction with the smaller denominator is closer to 0 on the number line. 17) 7 6 9 8 18) 8 7 13 12 19) Find the missing length. 20) Find the perimeter of the fi gure. 7 8 ? 5 cm 1 2 9 ft 1 3 3 ft 1 3 3 ft 1 4 4 ft 2 3 6 ft 3 4 13 ft For Exercises 21–22, approximate the location of each fraction or mixed number on the given number line. 0 1 2 3 4 21) 2 1 5 22) 9 16 Simplify each expression using the order of operations. 23) 7 8 2 5 3 8 24) 20 20 a 3 5 2 b 2 5 25) 4 7 a 1 10 2 5 b 1 3 Hip hop 1 4 5 24 3 20 7 120 Other 0 1 1 8 2 8 3 8 4 8 5 8 6 8 7 8 1 6 9 cm www.mhhe.com/messersmith CHAPTER 4 Cumulative Review for Chapters 1–4 289
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