Algebra Demystified 2nd Ed

66 algebra De mystif ieD A decimal number is convenient notation for the sum of fractions. For example the decimal number 0.183 ...

Chapter 3 DeCiMalS 67 SOLUTIONS 1.71 = 1 171 100 10071 = 34.598 = 34 34 598 1000 1000598 = , 0.6 =^6 10 0.289421 = 289 421 1 00 ...

68 algebra De mystif ieD 510.3 – 422.887 becomes 510.300 422.887 87.413 PRACTICE Rewrite as a vertical problem and find the su ...

Chapter 3 DeCiMalS 69 0.446 + 1.2 0 446 1 200 1 646 + 2.99 + 3 299 300 599 + Multiplying Decimal Numbers To multiply decima ...

70 algebra De mystif ieD 8 · 2.5 = 0.153 · 6.8 = 0.0351 · 5.6 = SOLUTIONS 3.2 · 1.6 = 5.12 4.11 · 2.84 = 11.6724 8 · 2.5 = 20 ...

Chapter 3 DeCiMalS 71 EXAMPLES Clear the decimal from the fraction. 71 2 285 . There are 3 digits behind the decimal point. 71 ...

72 algebra De mystif ieD 2 123 56 2 123 1000 561000 2123 5600 = ⋅ ⋅ = 4.^8 24 810 2410 80 24 10 .. 3 = ⋅ ⋅ == 5.^625 5 625100 ...

Chapter 3 DeCiMalS 73 PRACTICE Rewrite as a division problem without decimal points. 68 .. (^51) ) 511 09 ..)8 413 (^48) ) ...

74 algebra De mystif ieD • Perform addition and subtraction with decimal numbers. Add (or subtract) two decimal numbers (or a ...

Chapter 3 DeCiMalS 75 Quiz 3.64 = a.^67 100 b.^48 25 C.^91 25 D.^72 25 32 ⋅ .  4 = a. 6.2 b. 6.8 C. 7.2 D. 7.6 1.76 + 3.2 ...

76 algebra De mystif ieD 48 21..⋅ 5  = a. 8.23 b. 8.95 C. 10.32 D. 9.2 1.024 = a.^128 1250 b.^128 125 C.^1280 125 D.^1024 125 ...

77 chapter 4 Negative Numbers Negative numbers arise all around us. They represent the number necessary to bring a quantity up t ...

78 algebra De mystif ieD DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 To understand why some of the rule ...

Chapter 4 NegaTive NuMberS 79 DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 The difference of 125 and 75 ...

80 algebra De mystif ieD DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 If the temperature decreases 30°, ...

Chapter 4 NegaTive NuMberS 81 DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 SOLUTIONS 28 − 30 = −2 88 − ...

82 algebra De mystif ieD DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 SOLUTIONS −16 − 4 = −20 −70 − 19 ...

Chapter 4 NegaTive NuMberS 83 DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 PRACTICE Rewrite as an additi ...

84 algebra De mystif ieD DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 –x – (–14) = –x + 14 –x – 9 = –x ...

Chapter 4 NegaTive NuMberS 85 DeMYSTiFieD / algebra DeMYSTiFieD / HuttenMuller / 000-0 / Chapter 4 EXAMPLES Find the product or ...