DIC 2004
: ( ADD: 10 ) P.C.:100024 Tel :010-65477339 010-65740218(Fax) E - mail :webmaster@bte - book.com Http:www.BTE - book.com :8501168 2004 5 1 32 :380 :8536 ISBN7-88050 - 144-4 16.00 ( ),
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,, WTO,,,,,,,,,,, :,, 4
,,,,,,,,,,,,,,,,,,,, : 54 =?,4, 5,? 20 : 6,3,?,, 2,,,,,,,,, 5
,, 1 + 1,,,,,,,,,,,,, 7278 =?, :( + 1 ),, 5616,,,,,,,,,, 1.,, 2.,, 3.,,, 6
,,,,,,,, 7
: ( ) :, 5,1 1,5,5,, (,,) : 1:, 1 2 :,, 3 :, 4 :, 8
,,,,,,,,,,, 9
,,,,, :, :,, (, ) :2000 4 25,, 9, 2 :! : 3, 200 2, 400, 10 :! : 20,, 1 2 10 :! ( )
143,,,,? :!! :,, (, ) 1.,,,,,,,,,,,, 2.,,,,,,,,, 11
6465 1.10,10 2. 10, 10 3. 4. 10 10 12,,
. ( : 09, ),, 9,, 0 0? 2. : 1 0 9, 2 0 9 3. : 10( ),, 1. (1) : :? (2), 10, 9, 1, 10 (3) : 10,, 10 10 (4) 64, : 10, 10 13
) : 10 2., (1) 10,?? 10 (2) 9 (3) 65 3.10 (1) 10 09? (2) 10? (, ) (3) 65 10 (4) 4.10 :, 10,,, 10,, 10? (1 ) 10 10,,,, (2) (3) ( ) (4), (5) 10 14
,,,,, (6) 65 10 : 10, 1.,,, 10 ( : 3, 7,3 7 10 ) 2.,,,, 10 1.1, 2.2 ( ), (1),, (2) 3. 3 1.??, 2. :, 3. 15
9 1., 9,, 9, 9 2.,, 3., 16 : :20
),, :, :, 10, 3,?, :, 10 3 13, :,,, 9, 4,,, 9 + 4 =?,? 1: 2: 9 + 4 = 13 :9 + 4 13? 9,, ( :9 ) (), 9 1. : ( ),,? (, ) 2. (), 13,, 17
:,,,,,,, :,? ( )?,, 3. : 9,? ( :9 + 4) 9 4?, (,,, ), 9 + 4, (, :9 + 4 = 13), 4., :,,,,, 9,, 1, ( ) 5. 9 : 9 4, 9,,? 9,,? 18
:,? 9 + 6 9 + 7 9 + 3 9 + 8 6. 9 9, 9,, (, )9, (), 1. 9,,, 1 ( ) 2., 2,? () : 9, 9,,,! 19
, (10 ),,, ( 10 ),,,,,,,,,,,,,, P34 20 1.,1 = 10 1 = 10
3. : : : :1 = 100 1 1, ( ), 1 1 (),,,, 1,,? () : 1. : 1,,, 1,,?,,, 2. : 10, 9 1 10 1,8 1 20 1,7 1 30 1, 6 1, 40 1, 5 1 50 1 21
),, 1., > >,,,, :, 1,? 11, 28 ( ), 2. 1 1, 1 1 ( 2 ) 1 ( 3 ) 1 ( 4 ), 1 ( 10 )(1 ) :1 = (10 ), 3., 1 = 10,? :1 = 10 (), : 1 = 10, 1 = 10 1 = ( )?, 1., 2. :, 1 = 10, 1 = 10, 10, 10 10,1 10, 1 = 10, 10, 1 = 100, 1 = 10, 1 = 10, 1 = 100, (, ) 22
. 2 = ( ) 20 = ( ) 30 = ( ) 40 = ( ) 3 = ( ) 1 = ( ) 2. (1) 2 4 4 6 1 2 4 5 3 1 5 1 (2) 1 + 1 = ( ) 2 + 4 = ( ) 14 = ( )+ ( ) (3) 5 = ( )= ( ) 6 + 14 = ( )( ) :?,,, 23
1., 2.,,, 3.,,,,, 24
,,,,,,,,, :,,,?, ( ) :!,,,,?,? (: ), () 1. :??, 25
. ( ) 3. (1)?? (2) (),, 1. :,,, 2., (1):,,,? (2) 3.,,,, (), 1.,, 2.,?? 3.? 26
, ( ) 4.,,,?, 1.?? 2.?,, 3.,, 27
1., 2., 3. 1. : 2. : 1. ( 7: 307 : 50) 20 2. 3 3. 1 28
: 1. (1) :,, (2) :,,??? (3) :, (4) : (,,, ) 2.,,,,,,,, 3. :, : 1. ( ):, 7 20 2. :??, :, 29
3. :,? 4. : 20,, ( )? [ ( ) ] (1) : (2) :,,,,, ( ) :? (, ) : (3) ( ) : : a.? ( ),, b. :,,,, :, C. (4) :, 5.? (???) 6. :, 30
1. P73 1,,,,?, 2.,,,,, (, ), :?,, 3. :,, 72 :?,,, ( ), : 1. P73 2, 2. P60() 31
2629 ( ) 1.,, 2., 3.,, 32
,,,,, 1., ( ) 2.,,,, 3. 4. (,? ) 1.,,, 2. :,?? (,,, ) 3.,,, 33
: :? : : :?,,, :,,, ( ) : () : :? :,, () :,, ( ) : : :? :, 4.,, (,,,,,?), 5., 34
. 1 2,, 7. :, (1) 10, 3,,, (2),, (3), :,??? ( ) : 1. 3,, 2.,,,, 35
,9395 1.,, 2., ( ) 1.,,, 36
,,,? a? b? 1. (1), : a???, b? ( ) :, (2),,,, :??, :,,? :,,,,, 2. (1), (2) 1, 3. (1) :? (, ) : 37
( 2 ) 6, :, 1.,,? (,)?? (, ) 2. 2,,,? 3. () (1) (2) 3.4 38
1. 2., 1 39
. 1.: 20 :,, (,, ). 1.( )? ( )4 < 17 9( ) < 74 6( ) < 20 ( ) 7 < 31 2( ) < 9 5( ) < 16 : 5( ) < 16? (16 5, 5) : ( ) 4? 2. 5 15 8 40. 1. 6, 2,? (, )? 6, 3, (, ) 2., 7, () 7, 2,?? (, 1 ) :?? ( ),,,,,,, ( : ) 40
3. 72 = 3 1?, ( ) 4.72 = 3 1? (, ) 2 17?? (, 7 2?) 4??? (23 = 6 ) 7-6 = 1,,, 5. 6.,,, 385 = 5 38,,,, 7. 173 = 407 = 3 17, 7 40 ( ) :? 8. :,? ( ) :, 41
. 1. 3 6 5 10 4 12 3 7 5 12 4 15 :? 2. 4 21 7 30 6 35 3 20 3. 263 407 249 325 4..:?,,,,, 42
1. :,, 1 = 60, 1 1 2.,,, 3.,, :, : 43
,,,,,, 1, 1, 60,,,,,,,,, :,? ( 8 )? (40 ),? ( ) 44
: 1. (1),,, :, A(12),? B,, (12)(5), (60) C ( 3 ), (, ;, ;,, ) (2) : :,,,,,,, ; 0 ( 0 ),: 12? 12 12?, 60? 12 3.6.9.11??,?,,? 2. (1) 45
1,??? : : ( 12 ) 1?? (12 )9? 12, 12 ( )??, 1?,,,,,?,,,, (2) :,,,?,? (,,,,, 1, 1 = 60 : 1,??) 1?, 40, 10, 10 1, 1 3. 46
) 1.2,, :100,,, 00, 0 3.4 :,? ( ) 12, (2) :10 15 :??,, :,,,, 12,,,?? ( ), 1 30, :???, : 12,?, :,,, 47
:, : 3,,, :?,? (1) : : : :, 2 55,1130, 12 1,,, (2) : 1. :, 9 950 8 1 810 2. : 1 4, 3 ( ), 5 5 ( ) 12, 12 12, ( ) 6, 6 6 ( ) 48
) : : 1 8 10 2, 1? 1?,? 49
,,, 91.92, 13 1., 2. 12 12 3. 4., 50 :,12, :
1.,, 7, 2. :?,??, 3.,, (, ) 1,? ( 12 12, ),? 12,? 2,,,?,,,, 51
,,,,,, 1. : a,?,,?? : 12, 7 7 b,, 2. : a,?,,,, 8, 10, 12, 6, 9, b ( 6 9, ), 52
? c,!, (5 12 ), (1 11 ),, d:, : 12, ( ) 3. : a, b,? ( 7:00) 53
1., 1, 1 = 1000, 2., 1,, 1 54
1., ( ), 2. : :,,, : : m dm cm mm : ( kg) (g), 3. 1, 1,1,1 1.,, :,???? : :, ( km) : 1651 ( km), 3179, (km), 1388, (km) 1 =1000 1000 (10)100, : 100,, 100,? 1000 = 1,? 55
: 2 = ( )? (1) 2 500 = ( ) 4000 = (4) 5000m= ( )km (2) 6000 = (6) 3500m= ( )km( )m :6000 = ( ) 5830 = ( ) ( ) :, : 6 = ( ) 8 200 = ( ) 9 = ( )7 120 = ( ) 8000 = ( ) 1530 = ( ) ( ) 7000 = ( ) 6400 = ( ) ( ) :, ( )? : P52 56
P.32 1., 2. : :,,,,, 57
, () 1.,? 5, 4, 16, 2. (1)? (2)? (3)? 3.?, 4. ( 3),? () 1. (?), 2. (1) 1645 (2) 16(45) 58
. (1)?, (2)? (3) 4. (1) 164? 5? (2) 45??, 5. 4, 8, 6? () 1. (1) 8, 4? (2) 8, 4 ( 5 )? 2. :,,, (1), 6, 12, 8? (2) 6, 9 8? (3) 60, 4 9? 59
) 3, 1250 2? 3., 6, 12,,? (),,,?? () : 1. 12, 20 9? 2. 4, 30, 25? :, 1,,,? 60
P113 1. ( ) 2., 3.,,, : :, 61
, (), :,?,,? :, : ( ) () 1. () 29,27 (1) :,?, (), : 56 2 (), (2) () 4,? 62
,,, (3),, 29 + 27 = 56 ( )564 = 14( ) (29 + 27) 4 = 14 (), (4), : 29 + 27?? 4? 2. ( ) 300, 132, 3,,?? (1) (2),,,,, (3),, 3.,,? ( ) (1) 225, 165, 15,? ( ), (2) 390, 225 15,,? 63
),,, (4),,, 4.,?,, ( ), : 20, 40 : 4, 12,, ()? () 1. : 2. :,, 15 100 20 100 35 1500 2000 3500, 64
1., 2. 3., 1,6,1,,, 6 65
,,, :,,,,,,,,,,,,,, 1.,, a,,? ( ), b, b? 66
, c:, d :,? (,, ) e,? 2.?, (, ) :, :, 2 1 1 2 1 2 1, 2 + 1 + 2 + 1 = 6 ( ) : 2, 1 :, 67
2 = 4( ) 12 = 2( ) 4 + 2 = 6( ) : 2 1 (2 + 1) 2 = 32, = 6 ( ),,,, = (+ )2 C, a b,, : C = (a + b) 2 3. ( ),, 4, : 68
14 = 4( ) = 4 C, a : C = a4 :,, ; 4., : (1 ), 26, 14,? (2 ), 4? 5.,, (1), ( ) ( 1 ) ( 2 ) ( 3 ) (2),, ( ), (3), ( 4 ), ( ), (4), 69
P107109 1., ; 2., ; 3., ( )( ) 1., 70
2.??? ( ), 1., ( ),,, 2. ( ) 3.()??,? 4., :,, 5. : ( ), 1.,, 1 : ; ; : 8 ; 9 ( ) :,,,,,,,,,, 71
3., 9 6 15,?, 15, 6,? 4.: 1,?? 1 (3) 1,1, ( 1, ) 1,? 1,,? ( ) 1,,? 1 1,,? 1?,,, 72
1,, 8, 6,,?, 5.,,,?, ( ) 20( ) 20( ) 1 20( ) ( )? (,?)?? ( ) 1.,,,, 2.109, ( )( ) 12 (1313,, 1 1 ) (112 26 34 ) : 12, 12,,,?,,,, 73
,,,,,,, 2.,,,1,1, 1,,, 3.,,,, 74
1.,,, 2.,, 3.,, 1 75
,,, ( ),,,, :?,, ;, 1 ( ),, ;,,,,,,,,,,?, ( ),? ( ),,? 1. 16 1,, 1 76
) 16 ( ) (),, 2. 12 1 8 5,?, 11 1 6 6,,?, ( ) ( ) ( ), 8 5 6 6 3.,? : =, =, : S = ab, S = ab,,, 1., ( ) 2., ( ), 3.,, ( ), 4 (1),, 1 2, ( : ) 77
(2)? 3, 4,,,, 78
: P33 : 1. :, 2. : 3. :,,, :,,,,? ( ), 1.?? 79
,?,? ( ) ( ) 2., 10 3.,?, ( 0 ) 4.,? (), 1. P34 3 2. P30 1, 3. P34 1.2, 4. 5400300 =,?, ( ) 5. 39000300 36024 139500450 120025 5600140 3625,??? ( ) 80
1. 328 = 4, (324) (8 ) = 4 ( 324) (8 ) = 4 (32 )( 82) = 4 ( 32 ) (8 ) = 4 2. 250125, (1) ( 2505) (1255) ( ) (2) ( 250-5) (125-5) ( ) (3) ( 2505) (1255) ( ) (4) ( 250 + 5) (125 + 5) ( ) (5) ( 2505) (1255) ( ) (6) ( 25025) (12525) ( ) 3., (1),( ) (2) 8,8 ( ) (3) 10, 10, ( ) (4 ), 7, 10, 70 ( ) 4. 5400300 = 5. ( ) 39000300 = 139500450 = 56001400 = 36024 = 120025 = 3625 = 81
1.,, 2., 3.,,, :, : 82
:,?,?,?, : 1. : 1 :???, ( ), ( : ),? ( : 1/ 2 ), 2. :,,? ( ) (, ),? ( ) :? ( 1/ 2) :, 1/ 2, : 1/ 2,,,? 83
? ( 1/ 2), 1/ 2 3. 1/ 2, 1/ 2?,,,, 1/ 2 :, 1/ 2? 3. :? (), 4. 1/ 4,? ( ), 5.,? ( :, 1/ 4),? ( :2 2 1/ 4 2/ 4),? ( :3 3 1 4 3 4) 5. : 2/ 3? 6.? ( ) 7. 1.,,,,, 2.,?,?? 3. 4. : () 84
1.,,,,,, 2. ( 5.6 )?, :, 1/ 6,,? 85
( ) 12 17 p67,p54 1., 2. 3.,,? ( ),,,,,? ( ), 86
,,,? ( ), 2,?? ( 6 )? ( 23 = 6 ) 4, 3, 3? ( )20?,,,? ( ) :,,,,, 1.4,11,,,, 2 3 7 12 100 5 8 : ( ) 2.,? [ 2 ( 4-1) = 6 ] 3. 87
:) 4.,? ( ) :,,,,,, 1.,,,,,, 2. 4, 4,, 3.,? (,, ) :,, 1.,,,,,,? 2. 1 3.4 4., :,,, 88
??,,,,,? 11,? ( ) 2., 11? ( 10 )? (;,, ) 3. * p54 2 3 4 7 12 100 1 2 5 8 11 99 : = - 1 82 + 1 = 5( ) 83 = 4( ) 82-1 = 3( ) 89
1., 2., : a :,? b :,, c 1. 90
a : b :? c : 1., d :, 2.: 2. ( ),? 3.: 3. a. b () c : ) 4. (, a b :, c, 5. a, b 91
:, : ( ) ( ) =, C : () 1.: a b c 2. a b ) 1. 2. b () (,, c,, () 1.? 2. : P15[15], :,,,, ( ), 1. 2., 92
,,, 1 () :,,,? 93
(),,,,,?,??,? ( )??,?,? (, ),?, :,,,,, :,, () 1.( ) ( ) ( ) 2. :?,? ()? ( ),, :!,,,?,,,,, 94
:, :,,,, 20 :? : :?, :?, (),,,,,,,,, 94,, :? () 1.2., :,,, : :, :,,,, () () 95
1. ( ) 1 ( ) 1 ( ) ( ) 2, ( ) 3.,, ( ),,,,,, 96
P109-111 1.,,,,, 2., 3. 97
, :,,,,,,,!,,, 1.,,, (1),,, (2), (3), ( ) :,,, (4) 5,, 98
.,, (1) (2) :,,,???,, :, 1. 2. 3. 4. :? ( : ) (3) 3.,, (1) : (2) : (: ) (3),,, (4),, (1) : (2),? (:, ) :, 99
:, (?),? ( ),?,,, ( ) 1. 2. 3, 2 3. :,,,,, 100
1., 2., : : ( ),,,,,,,,,,, ( ) 101
: 1: ( ) :? ( ),,? ( ), ( ) 2:,() 1:? 2:? 3:? 4:? : ( )1:?,,,? ( ),? () 2: a ( ) 102 b? 5 8,, (3 3 3, ),
(, )? 3:? 4: : ( ) 5:? ) ( 3 3 3 ) 6: ( ( ) 1:? 9,,, ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) 103
2: 1., 2. ( ) ( )? 3. 4. (, ) 5. 3: 4: ( ) 1 ( ) 2, ( ) 3 ( ) : 1: ( ) 2: 5 5 104
? ( ) 3:,,? ( ) 1., 2. 3., : 1 2? (, ) : 3 2 5? 5 3 105
:? 2: 3:? 4:? : : 106
(65-66) 1.,1 2. ;, :,,,,,, :,?,,,!, : 107
:! ( ) : 2, 1 2 :? : 1 2 : :,, : :,,,, 2,,1 ( ) ( ) ( ) ( ), ( ) ( ) 6, 1 ( ) ),2 ( ( ) ( ), 3 ( ) ( ) : 108
:,?, a:, b:? :,,,! :, :,, : (1) : (2) : :? (1) : 1, :,? (3) :, :,,, :, 1 : :? (4):, :, (5) : 1 :, 1,,, 109
( 5 ) : ( 6 ) : ( 7 ) : 1 :? : ( ) : 1 (8) : (9) :, () :,,,, a (1) (2), 1 4 3 4 () b: (, ) 110
1.,, 2. 3., : : : 1.? 2., (1)4 2,?,,, 111
(2)2 2,? (2)1 2,? :? ( : ) 1. 1 2 ( 1), 1 2, (, ) :,, 1 2 1 2 1 2?,, 1 2, 1 2??? () ( 2) 1 2 ( 1 2, 1 2 ) 1, 2, 1 2 1 2 1,, 2,, 1 2, 1 2,, 112
1, 4, ( 1), 1 4 1 4,,? (2), 1 3 1 5 1 6,, 3, 1 3, 5, 1 5 (3 ), 78 2 ( 4) 3. ( 1) 1 4, 2, 2 1 4? 2) 2 4 ( 3) 3 4, ( 2, 4 3 4 ) 3 4,, 1 4, ( 4) 1 4 2 4 3 4 113
( 5) 78 78 ( 6): 1 2 2 3,,,, 4.,, 1.79 3 2.79 4 3.79 5.6?,,,, 114
, :,? : :? : 1,4, 3 :,,? : :,? : 1, :, 4 3 :,,,,? :,, 115
6 8,,, 9 12 12 16 ) :,? : 6 8, 9 12, 12 16 :,? : 3 4 = 6 8 = 9 12 = 12 16 ( ) :? : 24 32 :,? :,, 24 32,, 36 48 116 :,?
: 6 8 9 12 12 16, 24, 32 3 4,? 3,?, 4, :,, 3 4 6 8 9 12 12 16, ( ) :? :,, 2,2 :, 3 6 2, 4 8 2,, 3 9 3, 4 12 3, 3 4 12, 4, 16 : 6 8 12, 2 16 :, 6 8 9 12, 1.5 117
,?,, :,, 12 16 3 4, 4 ; 9 12 3 4, 3 ; 6 8 3 4, 2? :, :, ( ) : ( ) :,, 1 2, : 2 4 5 10 6 12 3 6 7 14 10 20 : 1 2 : :, : 1 2 = 1 2 ( a ),??? 118 : 0, a 0 :, :, 0 ( )
( ) :,,? : :? : (0 ), :,,? :,, ( 0 ), ( 0 ), :, :,, 1, 1 3 = (1) (3) = ( ) 6 5 30 = ( ) = 1 ( ) 16 24 = ( 16 24 ) = ( ) 6 4 28 = ( ) = 1 ( ) :,, 12, 36,,,,,? : 119
:6 : 9 :3 :72 :24 :12 :4 18,? :,,? :24 :72 :4 :12 :1 :3 :108 :324 :5 : (? ) 5,, :, 5, 12 36 :,, 15 :? : 12 2.4 5,, 36 2.4 15, 5 15 120
5, 15 36 12 3, 15 5 3, :,15, 12 36 1 3, 1 5 5, 3 5 15, 12 36 1 3 :,,? : : 3 :9 :13 :39 :, 4 12 36 :,,,,,,? : :,,,,,, :,,, 4, 121
, ) :,?? :,, 2, 3,, 1 4,, 2 8,, 3 12, :? :, :,? : :? : ( ) :? :, :? : ( ) : :,? : 4 7 = 4 + 28? 7 + 28?,? 122
3 1. 3, 3 2., 1. : 2 5 3 4 5, 3 4 5 2 2 5? 123
., :, 2? 2 3 5? 4., : 5? 5 1.: 3 ( ) 2.: 3 4 5 3? : 453.543 : 3 6, 9 3?,?, 3, 3 3? 3 4. :,,, 3 3?, 3.: 3 4 5 3,, 3. 3 4 5, 3,, 124
,, 3 1., 1 1, 10,, 100,, 3, 3,,, 3 2. 1.2.3, 3.,,,,, 3 4., 3.6.9.12 3 5. :,,, 3,?,,,, 3 1.,, (312.202.48.267.62 ) 2., : 62 3? 3,,,,,, 125
. 4.:,,, 3 3, ( 54.49.78.114.163.2031 ) 20301? 3002001,? 5.3?, 6., 3, 1.,, 3 45.51.78.90 111.201 3 2. 356, 3, () 3, 3? ( ) 3.(1) 58,,, 3,? (2) 127, 3, 4., 3, 369396936 : 3.6.9, 3, 21369475 3,, 5., 3 37926.45637.182754.123456789 126
.,?, 73853 = 2465 73853 = 22055 :? 3,? 127
:,,,,,,,, A B C,,,,,, A : 1. 2, 128
2. 1., ( ), ( ), ( ), ( ), ( ), ( ) 2. ( ), ( ) 3. 3, ( ), 2 3, ( ), ( ) 1., ( ) 2. 12, 6 ( ) 3. ( ) A,,,,, 129
B : 1. ( ) 2. ( ) 3. ( ) 4. A (34 ),,,?? 1. ( ), ( ) 2., OA ( ) AB ( ), O ( ) OC = ( ) = ( ) = 1/ 2( ) 3. 6, 2 3, ( ) 4. 5 48,???? ( ). B,,, 1,,,, 130
C C, 1. ( 4 4 ), : ( 1) (2) (3 ) ( 4) (5) (6 ) 1 4 : ( 1) (2) (3 ), ( 4) (5) (6 ) 2.A 16, B A, 1/ 4, B ( ),, 3. 2, (, ), ( ), 2?? ( ), 4., 6,,,,, ( ) ( ) ( ) ( ), ( ) ( ) ( ) :,,, 12,,, 131
1.,,, 2., 3., 4.,, 1. 2. 3.,? 132
( ) 1. 2. ( 1), :? ( : ) ( 2), ( 3) ( 4) 3. ( 1),,? ( 2), r, ( 3),,?, ( 4) 1 (5 ),,,, (6 ),, ( 7) 4 ( 8) 6,, 4., ( 1), ( 2) :,? ( 3) : 5. ( ) 1.5 2.6 3. ( ) 133
1., 2.,, 15, 12 134
, 1. 5 4 2. 5 4 : : 3.145 2 = 3.1425 = 78.5 ( ) : 3.144 2 = 3.1416 = 28.26 () 3.,,,,,,,, (), :? ( : )? ( ), 1. (1) :? (2) :?? 135
2. (1) ( ),?? (, ) :78.5-50.24 = 28.26() (2) : ( ) (3) :, :, : = -, 3. 3 ( 1 ),, :? (2) : 3.145 2-3.144 2 = 78.5-50.24 = 28.26( ) 3.14( 5 2-4 2 ) = 3.149 = 28.26( ) (3) : ( ) :,? :? ( ),,, 136
, 1., 2. 1 3. ( ) ( : ), 4. 12.56,, 1 ( ),,,,,,? 137
1., 2., 3., 3., 4. 1. 2.,,,, 138
1. 2. : r = 3 S = d = 4 S = C = 18.84 S =, 3. : 4, 10, 4., 1. ( 1)? ( ), ( 2) :,?? ( 3), 2. ( 1),,,,,, 139
( 2) ( 3): = 1/ 3 V = 1/ 3Sh 3. 3, ( 1)3, ( 2),, 4., (,, ) : 7.8,? 1. 1.3, 2. : ( 1),, 3,? (2), 3,? ( 3), 140
1. [ 13] 2. p28 2,, 141
1.,,, 2., 142
1. :,??, ( ),,? 2., : ( )???? :, ( ) ( ) () ( ), ( ),, a., AB D a,, AC, b. b. S = 109 = 90 () S= 1016 = 160() 143
S = (3 + 10 )72 S = 772 = 45.5( ) = 24.5( ) c. c. S + S = 90 + 45.50 S - S = 160-24.5 = 135.5( ) = 135.5( ) a. ( ) b., ( ) 3.( 2 ) 3, :,?,,? (),,?,, a.,, ( ), 144
,, b. 180,,, :,, c.,, 4. : a.? b.? c.?, 5.: P 71 P 71 145
:,,, ; ; ( ) ; ; ;,,,,,, A B C,,,, 146
A A, 1.,, 2., (1) ( ) (2) ( ) ; (3) ( ) (4 ), ; ( ) 3. 25, 12 B ( ), ( ), B 1. 10, 7, ( ) ( ) 2 2. 1, 4, 3, ( ), ( )( ) C (, ), C,, 1., 40, 25,,, ( ) 2. 300, 200 ;, 20, 15, ( ) (, ) 147
A ( A ), ( ), ( ), B 6 ( B C ),, C 12 ( ),,,? A : 5 A, 148
B : : B,,, C C, ( ), 4,,? ( 100, 60, ),?,? 149
1.,, 2., 1.:, 1 1 1 2.:, ( ), 1., 2., 150
),,,,,,? (dm)(cm)(mm)() 1. (1), :,,,, 0, 0, 0,,,,? 0,, 0,, 1, 0 1, 1 ( :1 ), 1,, ( ),, 1? (2), 1, 1, ( 1 ), 1 (3) 1? (,,, 1 ), 1, 151
) 1, 2? 5? (5),, ( ),, 0, 0, 0,,,,,,,,,,,,,? (,,, 0,,,,,,, ),,,, (6) 1, (7), 2 ( 2)?,??? 2. 1., 0, 10, 1, ( : ) 152
, 1 ( ),, 1?, 10, 1 10, 1 = 10 ( ) 2., 1, 3. : 2?? 4.2(1 ) 5.? 6. ( 1 ),, 1? 1 1? 1 = 10 = 100 ( ) 3. (1),,,,?,, ( : ), (2), 1,? ( 10 ) 1, : 1 = ( ) ( )10 = ( ) (3)? (1 ) 153
) (5),,, ( ) ( ) ( ),? :,, (6) 3 ( ),,, 1, 1 1 1,,,,,, ()? 154
1.,,, ( ) 2. 3.,, 1. :, 2800, 155
1560,,, 550! 2. : (1)?? (2)?, (3) : : 1.,, ( ), 6 8 3 5 0, (1) ( 0, ) (2)? (3) :, 6835 8036, 5368 6008 8356 3800 8653 503 635 8000 360 2. (1)?, 156
? ( )? (3),,,,,, ) (4), : 6,? (5) (6) 19 3. (1), (2) (3) :?? (4) 4. :,, : 1.( 72 6 ) 2.,,,,, 157
8 10 4008 2080 685 1988,? 3. 5.3.0 0 (1) (2).,,,,, 158
), 1. 2. 1. (1),, : 48-7 = 89-4 = 39-5 = 56-5 = 78-8 = 93-3 = (2) : 13-5 = 16-9 = 15-6 = 12-7 = 14-8 = 40 + 8 = 50 + 7 = 80 + 9 = 30 + 5 = 20 + 6 = 159
. (1)7 32-8 = ( ) (2), () 3 ( 10 ) 2,? 8, 2,? 12 8,? 4 2?,, : 32-8 = 24 20 12,,,,,,? 2 8, 1 2 12 12-8 44 2 24 (3)? = 30-8 + 2 = 32-2 - 6 3., 30-6 =,,,, 160
,. 5. (1) (2) ( ), :34 - ( ) = ( ) 6. 43 161
1. 2.4, 3. :4 : :,,,,,,,,,,,, 162 :(8 )
9 ( ),,,? 1,, ( ) 1. 26,, 10, 2. ( 1),,, : ( ), ( ), ( ), ( ), ( ), ( ) 4, 4 :? ( 4 ) 3.(2 ),, 16 8 12 4 20 24 4. (2) ( )4 = 8( )4 = 24 4( ) = 16,, 163
) 1.3 ( P82) ( ), ( ) :42 : 84 (1) 4 2? ( 2, 4,?)?, : 24 = ( 8) ( ) (2) 8 4? (8, 4,?)?? ( 2 ),?,? 84 = ( ): 4 8? : (), 2 2., ( ) 10,, 164
:?,? 124 = 204 = 124 = : ( ), 3 204 = : (), 5, 8 ( ) 1.( 1) ( )4 = 16 4( ) = 12 4( ) = 24 164 = 124 = 244 =,? 2. ( 2), ( ) 84 = 244 = 204 =,? 3. ( 4) 124 = 44 = 244 = 123 = 84 = 204 = 164 = 41 =,,,,,, ;,, ;,,, 165
) 1. ( 1)12 4 3 (2 )20 4 5,,,, ( ) 2. 09 10 ( 1),, ( 2), (,,, ) ( 3) 6,, ( ) 1 (1 )??? ( 4 ) : 4 5 () (, ) 5,,,,, 166
1. 2., 3., 4. 1., 2.,,,,,,,,,,,, 167
,, 1. 265 + 927 + 73 = 45 + 246 + 55 = 273 - ( 73 + 62 ) = 358-31 - 69 = 12 + 24 + 88 + 76 = :?? : 1. :? 2.,,,, 1.7 + 1.5 + 8.5 = 3.7 + 1.9 + 6.3 = 17.36 - (5.36 + 0.89) = 27.39-4.53-5.47 = 0.13 + 8.91 + 0.09 + 4.87 = ( ) :?? ( ),,, 168
? : :,, 1. P9(2) ( ) 2.? 3., ( ) 4. 7.8 + 3.32 + 2.2 + ( ) = 15 5.6-2.3 - ( ) - ( ) = 0.6 ( ) + 0.42 + ( ) + 0.58 = 3 5.6 - ( ) + 6.4-3.7 = ( ) 1.? 2.?, 5.39 6.89 6.11,,,,, 169
7.8 + 3.32 + 2.2 + ( ) = 15 5.6-2.3 - ( ) - ( ) = 0.6 ( ) + 0.42 + ( ) + 0.58 = 3 5.6 - ( ) + 6.4-3.7 = ( ),,,,, 45 + 246 + 55 = 3.7 + 1.9 + 6.3 = 265 + 927 + 73 = 1.7 + 1.5 + 8.5 = 12 + 24 + 88 + 76 = 0.13 + 8.91 + 0.09 + 4.87 = 273 - (73 + 62) = 17.36 - (5.36 + 0.89 ) = 358-31 - 69 = 27.39-4.53-5.47 = 170
06,,,,,,,,,,,,,, 1. (1),, (2) 2. (1), 171
, 3. (1), (2), :, : 1.,? 2.? (2 2,3 3 ) 3.,? (5 5 ) : 5 5, ( )? 1.,,,,,, (1) :,,, (2), 2. (1),,,, 172
(2), 3. (1),?,,,, ( ), (2),,, (3), 4.,,,,? (1) (2),, 173
:? ( ) ( )? 5. 6. :? 7. :? ( ),, ( ),,,,, :,,,, () 1. 2, 4,, 2, 4, 5,,? (), (), 174
1.,,, 2.,,, :, 1. (: ) 2. 6, :, : : ( ),,, 175
: 1. 2. : :? 3. 4, :3 :15 :8 :6 (), 1.:,,? 2. (1), (2), (3) :? ( :,, ;,? ) (4) :? (5), : 176
: :, ( :?) ( : ) :, (6), 3. (, ) (2),, (3), (4) :,? 4. : (), 1.:,,,, 2., () 1., 2., 3. : (1),, ; (.) 177
: (2),, ( ) 1.:, 30, 20,, 2.( ),, 3.,? : : :3 :15 :8 :6 178
1., ; 2.,, ; 3. ; : :, 1.,,,, 2.,,,,, 179
,, ( ), :, (, ) ( ),?? ( )?? (, ) ( ) ( ) A 1. () 155 = 1.55 = 244 = 3.60.9 = 163 = 8020 = 65 = 237 = 2.,, :,,,,, 180
, : 155 = 3 1.55 = 0.3 244 = 6 3.60.9 = 4 8020 = 4 65 = 1.2 : 163 = 5 1 237 = 3 2,,, : a. b.,, : a. b. :,,,, : 155 = 3 15 5 : 244 = 6 8020 = 4? B a, b,,,,,, a b,,, 181
a b, a b, : a b,, a b P28, :?? 1. 2. : ( b0) C( ) 1.? 328 = 4 1030 = 0.3 350.7 = 50 5117 = 3 209 = 2 2 4.81.2 = 4 4.26 = 0.7 605 = 12, :?? (,, ),,,,,,,, 182
2.?? 15 1 28 7 100 20 13 10 3.,? a b, a b, b a ( ) : 15 5, 15 5, 5 15 : 15, 5,? :, : 0 P29 (?) ( ) ( ) ( ) 1. P30 3( 4 ) 4 2.,? 40 8 ( ),, 183
12 10 ( ) 18 9 ( ) 6 2 ( ) 1 ( ) 3. ( ) ( ), ( ) ( ) 1 3 4 8 12 15 16 4. ( )10 ( )2 ( )20 ( ) P16,,,,,, 3.4,, : : 155 = 3 1.55 = 0.3 244 = 6 3.60.9 = 4 8020 = 4 65 = 1.2 : 163 = 5 1 237 = 3 2 ab( b0) a b a b b a 184
1., 0, 2.,, 0 1 185
, 1.( ) 2700900 5400600 480060O 2100700 5600800 7200900 2 (3 ) 2 (3 ) 2.6,, 1.8 6950285 (?) 285? (300) ( )695300, (2) (,, ), ( ) 2., 1. 27 8 : 8? ( 8 ) : 8? 186
(, ) ; : 2, 1 ; ; [ :,, ( ) ], 1. 2. 2 ( ) 8292382 3. 3 () 187
1., 2. : 1. :, ( ) ;, ( ) 2. :, 188
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P73 2, 1. ; 2., : 1. : ( 2),, 191
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., 6, 11, 4? ; :,, 3. :, 123, 231, 312, 4. 5. 2, 1. : 40,?,, 80? 40 + 80 ( 40 + 80)2 45, 35, (40 + 45 + 35)2 (40 + 45 + 35)3 80, 100 (40 + 80 + 100)2 (40 + 80 + 100 )3 2.9,, 324, 30,??? 3., :,? : P61( ),,, 193
, ; ; ( ) : () 1.,, 250, 625 ; 196, 588 ; 184, 588. ; 8? 2., 250, 625 ; 196,, 588 ; 184, 588., 8? :,??? 194
): 1. 2,, 1:, 250, 2.5 ; 196, 588 ; 184, 588.8? 2:, 250, 2.5 ;, 196, 3 ; 184, 3.2,? :,, :? (,,, ), : (625 + 588 + 588.8) (250 + 196 + 184) 1:(2.5250 +588+ 588.8)(250 +196+ 184) 2: (2.5250 + 3196 + 3.2184 ) ( 250 + 196 + 184) : 195
1 : ( 2.5 + 588 + 588.8) (250 + 196 + 184) : : : 2.,,,, 630, 2.86 250, 625 ; 196, 3,? : ( 2.86630-625 - 3 196) (630-250 - 196) ( ): 1.7, 8, 26 ; 6, 22 ; 5, 27 7? A.(2 + 22 + 27)( 8 + 6 + 5 ) B.(268 + 226 + 275)7 C.(268 + 226 + 275)( 8 + 6 + 5 ) D.(268 + 226 + 275 )3 :?, (7 3 ), 196
?? ( ): 1. 2.( ), 92, 88, 94, 90? 170,, 152, 184,? ( )( ),, 197
1.,, 2. 1. 15, 7,?,, : ( : ) 2. 198
,? ), ( : 1. ( ), 10, ( 1) : 1,? 2? 3? :?,? (, ) ( )13, 7 :? )?,? (, ( ) 199
2. :,, 2,, 3.4 ( ) ( 1), 13 7,, ( 2),, ( 3):,?, : : 13 + 7 = 20 (), : 202 = 10 () : 10-7 = 3 () 13-10 = 3( ) ( ) 4., 200
: ( 1 ) 1,, ( 2)2 5, 5. :??? 201
1. 2. 3. 4., : :, ( ) : : 1., (, ) ( ),,, 202
) : 278, 6 ( ) 32,? :2786 + 32 ( 2) 3232,??? 2786-32 : :,, ; ( 2 ), (2 ), ( ) ( ) 1. (2 )? (1 ) X( ( 2) ( X, X ) ( 2) : ( 6 X 32) (), ( 1) : 278, 6 32,,, : ( 278-32 )6, 32?, ( 2) 32 34,??? ( 278 + 34 )6,, ( 1)( 2) : ( 1) 203
, 278, 6,,, 32 ( ) : 6 + 32 = 278( ) ( 3): () 6X + 32 = 278 ( 2), 6X = 246 X = 41 2.?,, 6X = 278-32 278-6X = 32 ( 278-32 )X = 6? 3., ( 2 ) ( ) 1. 4,,?,, 2.,, 4, : 3. : ( 1): X ( 2): ( 3): ( 4): X ( 5): 1. ( 1),,,,, 204
) 2., : : : 3. 14.6, 6 1.6,? ( ) 4. : 23 1. 2.? 3.? 205
:, :,??,,,? ( 5 6 12 ) :,? A:, B:,,, C: 5 6 12, 206
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,,,,,,,,,,,,,, 208