Fundamentals of Mathematics, 2008a

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34 CHAPTER 1. ADDITION AND SUBTRACTION OF WHOLE NUMBERS 6 + 5 + 1 + 7 = 19 Write 9, carry the 1. 1 + 1 + 0 + 5 + 1 = 8 Write 8. 0 + 9 + 9 + 8 = 26 Write 6, carry the 2. 2 + 8 + 9 + 8 + 6 = 33 Write 3, carry the 3. 3 + 7 + 3 + 5 = 18 Write 8, carry the 1. 1 + 8 = 9 Write 9. The sum is 983,689. Example 1.28 The number of students enrolled at Riemann College in the years 1984, 1985, 1986, and 1987 was 10,406, 9,289, 10,108, and 11,412, respectively. What was the total number of students enrolled at Riemann College in the years 1985, 1986, and 1987? We can determine the total number of students enrolled by adding 9,289, 10,108, and 11,412, the number of students enrolled in the years 1985, 1986, and 1987. The total number of students enrolled at Riemann College in the years 1985, 1986, and 1987 was 30,809. 1.5.5.2 Practice Set B Perform each addition. For the next three problems, show the expanded form. Exercise 1.5.4 (Solution on p. 80.) Add 58 and 29. Exercise 1.5.5 (Solution on p. 81.) Add 476 and 85. Exercise 1.5.6 (Solution on p. 81.) Add 27 and 88. Exercise 1.5.7 (Solution on p. 81.) Add 67,898 and 85,627. For the next three problems, nd the sums. Exercise 1.5.8 (Solution on p. 81.) 57 26 84 Available for free at Connexions
35 Exercise 1.5.9 (Solution on p. 81.) 847 825 796 Exercise 1.5.10 (Solution on p. 81.) 16, 945 8, 472 387, 721 21, 059 629 1.5.6 Calculators Calculators provide a very simple and quick way to nd sums of whole numbers. For the two problems in Sample Set C, assume the use of a calculator that does not require the use of an ENTER key (such as many Hewlett-Packard calculators). 1.5.6.1 Sample Set C Use a calculator to nd each sum. Example 1.29 34 + 21 Display Reads Type 34 34 Press + 34 Type 21 21 Press = 55 Table 1.24 The sum is 55. Example 1.30 Available for free at Connexions
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84 CHAPTER 1. ADDITION AND SUBTRACT
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100 CHAPTER 2. MULTIPLICATION AND D
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154 CHAPTER 3. 3.2 Exponents and Ro
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156 3.2.4 Roots CHAPTER 3. EXPONENT
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158 CHAPTER 3. EXPONENTS, ROOTS, AN
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164 3.3.3.1 Sample Set B CHAPTER 3.
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176 3.4.6.1 Sample Set C CHAPTER 3.
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186 3.6.3.2 Practice Set B CHAPTER
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188 3.6.5.2 Practice Set C CHAPTER
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200 CHAPTER 3. Solutions to Exercis
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214 CHAPTER 4. INTRODUCTION TO FRAC
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220 4.2.6 Exercises CHAPTER 4. INTR
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226 Thus, CHAPTER 4. INTRODUCTION T
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236 4.4.3.1.1 Sample Set B CHAPTER
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238 CHAPTER 4. 4.4.4 Raising Fracti
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250 √ 9 100 = 3 10 Example 4.45 4
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262 CHAPTER 4. 4.7.2 Multiplication
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268 CHAPTER 4. 4.8 Summary of Key C
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278 CHAPTER 4. Solutions to Exercis
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296 CHAPTER 5. ADDITION AND SUBTRAC
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304 5.3.4 Exercises CHAPTER 5. ADDI
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340 CHAPTER 6. DECIMALS • underst
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342 CHAPTER 6. DECIMALS 4. 0.7 The
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344 CHAPTER 6. DECIMALS 0.17 6.2.5.
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346 CHAPTER 6. DECIMALS 6.2.6.1 Exe
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348 CHAPTER 6. DECIMALS 4 + .006 1
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352 CHAPTER 6. DECIMALS 6.4.3 Exerc
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354 CHAPTER 6. DECIMALS Exercise 6.
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356 CHAPTER 6. DECIMALS 841.0056 47
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358 CHAPTER 6. DECIMALS The sum is
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362 CHAPTER 6. DECIMALS Thus, 6.5
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364 CHAPTER 6. DECIMALS Table 6.15
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366 CHAPTER 6. DECIMALS 6.6.6.1 Sam
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372 CHAPTER 6. DECIMALS 6.7.3 A Met
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374 CHAPTER 6. DECIMALS Method of D
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378 CHAPTER 6. DECIMALS 816.241 10)
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382 CHAPTER 6. DECIMALS Table 6.29
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384 CHAPTER 6. DECIMALS Repeating D
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386 CHAPTER 6. DECIMALS .1818 11)2.
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390 CHAPTER 6. DECIMALS .125 8)1.00
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396 CHAPTER 6. DECIMALS 6.10.3 Exer
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398 CHAPTER 6. DECIMALS 6.11 Summar
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400 CHAPTER 6. DECIMALS 6.12.1.2 Co
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404 CHAPTER 6. DECIMALS Solutions t
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406 CHAPTER 6. DECIMALS Solution to
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420 CHAPTER 7. RATIOS AND RATES 7.2
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422 CHAPTER 7. RATIOS AND RATES are
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424 CHAPTER 7. RATIOS AND RATES Exe
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434 CHAPTER 7. RATIOS AND RATES Exa
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440 CHAPTER 7. RATIOS AND RATES To
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450 CHAPTER 7. RATIOS AND RATES Wha
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452 CHAPTER 7. RATIOS AND RATES Do
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460 CHAPTER 7. RATIOS AND RATES Per
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466 CHAPTER 7. RATIOS AND RATES Sol
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476 CHAPTER 7. RATIOS AND RATES Ava
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478 CHAPTER 8. TECHNIQUES OF ESTIMA
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514 CHAPTER 9. MEASUREMENT AND GEOM
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578 CHAPTER 10. SIGNED NUMBERS 10.2
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580 CHAPTER 10. SIGNED NUMBERS Some
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600 CHAPTER 10. SIGNED NUMBERS Exam
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632 CHAPTER 11. ALGEBRAIC EXPRESSIO
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694 INDEX Index of Keywords and Ter
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696 INDEX Ÿ 3.4(172), Ÿ 3.5(180),
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698 INDEX reading, Ÿ 1.3(15) readi
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700 ATTRIBUTIONS Module: "Addition
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702 ATTRIBUTIONS Module: "Multiplic
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704 ATTRIBUTIONS Module: "Introduct
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706 ATTRIBUTIONS Module: "Addition
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708 ATTRIBUTIONS Module: "Decimals:
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710 ATTRIBUTIONS Module: "Ratios an
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712 ATTRIBUTIONS Module: "Technique
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714 ATTRIBUTIONS Module: "Signed Nu
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716 ATTRIBUTIONS Module: "Algebraic
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Fundamentals of Mathematics Fundame
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Fundamentals of Mathematics, 2008a

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