Fundamentals of Mathematics, 2008a

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490 CHAPTER 8. TECHNIQUES OF ESTIMATION 8.4.3 Estimation Using the Distributive Property We can use the distributive property to obtain exact results for products such as 25 · 23. The distributive property works best for products when one <strong>of</strong> the factors ends in 0 or 5. We shall restrict our attention to only such products. 8.4.3.1 Sample Set B Use the distributive property to compute each value. Example 8.19 25 · 23 Notice that 23 = 20 + 3. We now write Thus, 25 · 23 = 575 We could have proceeded by writing 23 as 30 − 7. Example 8.20 15 · 37 Notice that 37 = 30 + 7. We now write Thus, 15 · 37 = 555 We could have proceeded by writing 37 as 40 − 3. Example 8.21 15 · 86 Notice that 86 = 80 + 6. We now write Available for free at Connexions
491 We could have proceeded by writing 86 as 90 − 4. 8.4.3.2 Practice Set B Use the distributive property to compute each value. Exercise 8.4.8 (Solution on p. 507.) 25 · 12 Exercise 8.4.9 (Solution on p. 507.) 35 · 14 Exercise 8.4.10 (Solution on p. 507.) 80 · 58 Exercise 8.4.11 (Solution on p. 507.) 65 · 62 8.4.4 Exercises Use the distributive property to compute each product. Exercise 8.4.12 (Solution on p. 507.) 15 · 13 Exercise 8.4.13 15 · 14 Exercise 8.4.14 (Solution on p. 507.) 25 · 11 Exercise 8.4.15 25 · 16 Exercise 8.4.16 (Solution on p. 507.) 15 · 16 Exercise 8.4.17 35 · 12 Exercise 8.4.18 (Solution on p. 507.) 45 · 83 Exercise 8.4.19 45 · 38 Exercise 8.4.20 (Solution on p. 507.) 25 · 38 Available for free at Connexions
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Fundamentals of Mathematics By: Den
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iv 4.10 Prociency Exam . . . . . .
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2 • Section Exercises • Exercis
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4 Addition and Subtraction of Fract
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8 minds to our suggestions and conc
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10 CHAPTER 1. ADDITION AND SUBTRACT
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92 CHAPTER 2. MULTIPLICATION AND DI
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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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CHAPTER 5. ADDITION AND SUBTRACTION
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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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540 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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594 CHAPTER 10. SIGNED NUMBERS Thus
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600 CHAPTER 10. SIGNED NUMBERS Exam
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606 CHAPTER 10. SIGNED NUMBERS |
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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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716 ATTRIBUTIONS Module: "Algebraic
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Fundamentals of Mathematics Fundame
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Fundamentals of Mathematics, 2008a

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