分数加减法简便运算 136 题(有答案)分数加减法简便运算专项练习 136 题(有答案)(1) ++(2)()(3) .(4)()+++(5)(5) + +(6)( + )(8)(7)+ .• •(8).(9)999+99+9+.(10)++++++++(11)+(12)(1)(13) 2.(14)0.4+ .(15).(18)(19)(20)+(21)1(22)+++(23)(24)(25)(16)+(17)()(18)++..(19)3(30)(20)4(21).(22)+( + )(23)( + )(24)+++.+++(36)+(37)+ +(38)+ () +(39)0.58++1.12+(40)11.(41)(42)(25)3. 5(26)+++(45)(27)( + )(28)+++.(29)6• •+(49)(30)()+(51)+++(52)(31)+(32)+++8(55)+ +(56)(33)( + )(34)2(35)+(36)+++(37)( + )1(62)(38)6(64)+(65)()(66)(39)( + )(40).• •(41) 1().(42)( + )(43)++(44)()(45)+ +.(46).(47).(48)+++(77)+(78)+++(79)+2++3.(79)(80)++.(81)+++.(82).(83)( + ).(84)(85)(84)+.(87)(88)+ +.(89).(90) (2 1 )( 1 2)(90)(2 1 )( 1 2).( 91 ) 19.76 4 3.( 92 ) 8 8+2.( 93 ) 2.5 X.25 32.( 94 )+ . ( 95 )().(96)1 .(97)+.(98).(99).(100).(101 ) 16 x( 10+).(102)2 .(103)11+13+15+17+19+21.(104)(105)( 106 ) 51.27 8.66 1.34( 107 ) 32. 5 -( 0. 05 ^0)(108)(109).(110)++(111)()(112)( + )(113).(114)() . (115)().(116 ) +++(117 ) 5+1+3+2+6+4+.(118)+ ・( 119 ) ( )( 1. 375 )(120) +++(121 ) +++++.(122)++.(123)+++・(124 ) ++++..(125)+.(126)51.(127)+++.(128).(129)1(130).(131 )+ .(132)()(133)5( 134 )( 10 6 ) <8. (135) ++(136) + +• •参考答案:⑴++・= ( + ) + ().=1+0.=1;(2)().=+.(3)=()+(+)•=7+9.=16(4)()—•(5 ) +++・=(+)+(+)=1+1.=2;(6 ) + +.=(+ ) + (=1+0.=1(7)( +.(8) =( + ).=1.=,;(9)+ .=(+ )( + ).=1 1.=0.(10)11 2+3 0.2.=11+3( 0.2+2).=15( 0.2+2.).=15 3.=12(11 ) 999+99+9+.=(999+99+9 ) +x3+.=[(10 1 ) + ( 1 1 )+ ( 10 1 )]+ ( + ).=1110 3+3.=1110(12 ) ++++++++.=+++++ ( + ) + ( + )+ ( + ) + ( + ).=+++++ ( + ) + ( + )+( + ) + ().=x3+ (+ ) + ( x3 ) + (+2 ) + ().=1+1+1+1+1.=5;(13)+ .=(+) (+).=1.(14)(1).=+1.=+l.=1;(15)2.=2( + ).=2 1.=19.0. 4+ .=+.= ( + ) ( + ).=1 1.(16)= ()+()・=2+3.=5.(16)+++.=(+)+(+).=+1.=1;(17) 4.=4( ...