quick review math handbook volume book 2

[...]... of cimal places accuracy th 12 to three de 62. 428 12 unding 62. 428 than rounding Examples: Ro more accurate ( 62. 428 ) is ) al places ( 62. 43 to two decim places ( 62. 43) two decimal e 62. 428 12 to Rounding 62. 428 12 to on an rounding ore accurate th is m ( 62. 4) decimal place al place ( 62. 4) to one decim the ding 62. 428 12 Roun ng 62. 428 12 to te than roundi is more accura number ( 62) nearest whole a scale represented... to three decimal places ( 62. 428 ) is more accurate than rounding 62. 428 12 to two decimal places ( 62. 43) Rounding 62. 428 12 to two decimal places ( 62. 43) is more accurate than rounding 62. 428 12 to one decimal place ( 62. 4) Rounding 62. 428 12 to one decimal place ( 62. 4) is more accurate than rounding 62. 428 12 to the nearest whole number ( 62) actual size the true size of an object represented by a scale model... 1 0 2 18 3 4,089 4 0 5 500 computatio e answer to 6 1,400 ns, mathem a series 7 (4 + 7) × 4 = 44 8 20 + (16 ÷ aticians hav 4) + 5 = which to do the op e agreed u 29 erations pon an o 9 no 10 no 11 yes 12 no 13 5×7 14 5 × 23 15 2 2 × 5 × 11 16 6 17 15 18 6 EXAMPLE 19 15 20 20 0 21 360 Using the Ord er of Operati Simplify 4 2 ons p 69 22 12, 36, or 108 23 8, - 8 × (6 8 24 14, -14 25 = 11 6) 11,4 2 8 ×... 62 Patterns 63 HotWords 3 HOTWORDS HotWords W A absolute value a number’s distance from zero on the number line see 1• 4 Integer Operations Example: -2 is 2 units from 0 -5 -4 -3 -2 -1 0 1 2 3 4 5 The absolute value of -2 is 2 or | -2| = 2 accuracy the exactness of a number Examples: Rounding 62. 428 12 to three decimal places ( 62. 428 ) is more accurate... × (0) 26 20 , -20 27 7 28 -1 29 - 12 30 8 =31 0 • Simplify (16) - 8 × 32 4 33 35 34 -5 35 6 36 within parent 0 60 37 -24 heses = 16 - 0 • Evaluate 38 -66 39 It is a positive integer the power 40 It is a negative integer = 16 • Multiply or divide from left to So, 4 2 - 8 • Add or su × (6 - 6) btract from le 1•1 Properties = 16 ft to ri 1 Numbers and Computation p 71 p 72 1 yes 2 no 3 no 4 yes 5 26 ,30... six congruent square faces; [2] the product of three equal terms see 3•1 Powers and Exponents, 6 2 Polygons and Polyhedrons, 8•1 Scientific Calculator Examples: [1] 2 2 2 a cube [2] 2 3 = 2 × 2 × 2 = 8 cube root a number that when raised to the third power equals a given number see 8•1 Scientific Calculator Example: 2 is the cube root of 8 3 √8 = 2 cubic centimeter the volume of a cube with edges that... 321 Area of a Trapezoid 322 Exercises 323 6•6 Surface Area Surface Area of a Rectangular Prism 324 Surface Area of Other Solids 325 Exercises 327 6•7 Volume What Is Volume? 328 Volume. .. problems The HotSolutions section is at the back of the handbook 1 2 What are HotSolutions? 1 2 Order of Op e Understa nding the O HotSolutions i OR DE R O r de r of O p Solving a p er roblem may involve usi Your answ ng more th er will dep an end on the those oper order in w ations hich y For examp le, consider the express ion 2 2 + 5 22 + 5 × 6 × 6 or 2 2 +5×6 4+5×6 4+5×6 9 × 6 = 54 4 + 30 = 34 The order... 22 6 5•1 Writing Expressions and Equations Expressions 22 8 Writing Expressions Involving Addition 22 9 Writing Expressions Involving Subtraction 23 0 Writing Expressions Involving Multiplication 23 1 Writing Expressions Involving Division 23 2 Writing Expressions Involving... 29 2 Classifying Triangles 29 2 Exercises 29 4 6 2 Polygons and Polyhedrons Quadrilaterals 29 5 Angles of a Quadrilateral 29 5 Types of Quadrilaterals 29 6 Polygons 29 8 . = 29 9. no 10. no 11. yes 12. no 13. 5 × 7 14. 5 × 23 15. 2 2 × 5 × 11 16. 6 17. 15 18. 6 19. 15 20 . 20 0 21 . 360 p. 69 22 . 12, 36, or 108 23 . 8, 8 24 . 14, -14 25 . 11, 11 26 . 20 , -20 27 of - 2is2or | - 2 | = 2. - 5 - 4 - 3 - 2 - 10 123 45 accuracy the exactness of a number Examples: Rounding 62. 428 12 to three decimal places ( 62. 428 ) is more accurate than rounding 62. 428 12 to. decimal places ( 62. 43). Rounding 62. 428 12 to two decimal places ( 62. 43) is more accurate than rounding 62. 428 12 to one decimal place ( 62. 4). Rounding 62. 428 12 to one decimal place ( 62. 4) is more