(完整版)分数乘除法简便运算100题(有答案)

1、分数乘除法简便运算 100题（有答案）615X3_ 8-3_ 8/(29X3X4 一27+8_ 911- 6X5- 9+5- 9X5- 62- 3-7/(X1- 63)2- 5X613-7- 5X6133- 4X527+3- 4X2- 9X 24(8)(7) 12 X 6 -令 X 6_625(10)_33537 X(9)7_10(12) 7 X 101-103X214153214(11)888833x -9x(14)x 99 +99955(13)484(4 +9 ) x 7 x 9(16) 35 x 25(15)5(25)20(17)3436 x 3555(18) ( 6 - 9 ) x18

2、5(19)15x-2(20) 325(21)10(22)35 7 53(23)7712 1(24) 99995(26) 595124 _59 12333(27)8 -(28) 633762(29)(30)29 x(15 x39 )(31)8X 15(32) 2易11(33)54 X(34)12182472(35)110.375261119(36)25色19255 3丄(37)684811 5 3 13112 6 4 24247 1125(39) 959 1143(40)43265578157343(41)85 5丄丄7 9 127 9112(43)3344240.6(44) 6.8+ - X3

3、.255(45)101 X425(46)- + - X 158 8(47)8_815-812611(48)X- +X-(49)(90 +)X 3737888945(52) 18X( 4 +_ )96(51) X A + A + 1°151627922(53) - X 7+- X 533(54)( 6 -右)X( 24- £)(55) ( 5 X 4+ 4 )- 47777(56) 5 亠(2+1 )X 却(58) 3331 X 33(57)33 X + X 338 11 11 8(59) 5 12 12 9(61)(32 X1丄 + 17)-_5412(63)18x 2 +

4、 ZX + 25162516 163 11(62)(25 +)* +4 44(65)8 G 5)463 (64)916239(67) (99+)- 910341(66)( 21 X - + 4 X 21)X 1774144(68)亦 r (815X 2115 4(69) (+_)X 306 55699X+(70) 65105111(71)->58 HX41 + -888445145 ,23(72) X- X -(73)X- +* 57425 6554(74)匚勺5583X 153 -0.6X 53(75) 5(76) (5 + 1 )7+ 10(77)1 X 舟3宁（310X6 )(78

5、)(X 15X 11(79)371439(80) 46 X4445(81) 2008 X006“CC、 4157(82)-X 22X石91394(83)兀X乃+兀X乃9(84) 36 X(85)1111131313 X 33(86)X101-Z2525(87)1 4X5- 9+3 一 4X5- 9(89) 17X916(91)44 X 37(92) 2004 X45672003(93)73 X -158(94) 166 丄-41201 “3"263X 39 +X 25 +X(95) 44413423117(96)1 X( 2 - -) + 15-17341221(97)2000 -

6、2000-200020011993 19941(98) 1993 1992 1994(99)3 - X 25- + 37.9 X 6555(100) (9 2+7 2 )-( -+5 )797 9分数乘除法简便运算100题答案(1) (9 +247 )X 3 x 9 =31336（2）（?-3)'x 亦=012196 x( 7 -2）=18(3)(4)5- 9-1 一 6X5- 9+5- 9X5- 6235(5)9 x4+27 x1136(6)_613_6136_13(7) 12 x 6 -令 x 6 =133433（8）8+ 8x 7+ 8x34(9)37 x35= 335(10)2

7、5 x 246_25(25-1 )=51925(12)153214103x 214x 101-£ =7。(14)89 x 9 =033(14)x 99 +=6055(16) ( 4 + 9 ) x 7 x 9=92(16) 35 x25=95(17)34(18) ( I -5189)近=1=(35+1)34x 35=343435(19)2(20) 3255x-6=(25+5 )x 135(30+号1=5=27(21)1035(22)=7-7(23)7(24)9=5(25)20 -6=12丄2(26)121291253(27)3 -(28) 633762=37可6212(30)2929

8、X(15 X 3-)3130(29)-352(32)8 X3(33) 54 X(36)11X 8 = 21595)=30.375(32)(34)3 =0(36)32541112X 4= 10318192524212572 =10919=19 -75(38)6111348=58(38)122424 =711(39)911 =(40)265578157113=7508 =64(42)791279 12=5388(42)5353344240.6(43)353=60(45) 6.8 X1 + 1 X3.2 =2(45)5544101 X =16252555(46)+ X15 =10(47)88 8空+

9、8=1丄1515(48)X6 + z X67(491、1190 +)X:=1 -8889885 3 5 5 5(50) 5 X 3+5 X 5-78 8 7=7(51) - X15101627=3(52) 18X=23(53) 2 X 7+2 X 5 =833(55)(5x 4 + 4)宁 4 127777 =7(54) (1 -6-丄)X( 24 - - ) =11251(56)52-(+3i)X 协31415(57)33 X + X 33= 338 11 11 8 8(58)1333 X 3 =10003(59)1212(60)2 5253 456=11(62) (32 X 1 + 17)

10、-_ 5412=60(62)(25+ 3 )41 1 1+44 =1034189 |79 |99X+X+2516251616 =8(63)51131663 (- 3) =20(64)9 21 7(65)( )823423=034121(67)( 21 X 3 + 4 5 X21)X - =2177449 1(67) ( 99+)- 9 =11-10 9(73)14(69) r157105 4(69) (+_)X 30 =496 556991X-j=(70) 6510521 1 1(71) - X58+ X41+ 888=12.51)4(74)勺535 X 153 -0.6X 53=60 (75

11、) 5417723(76)( 5 + 4 心 3 +10 =201 13103(77)8 X 运r5 X 6 )=-3223(78)(亦+ 石)X 15X 132013 X 33 =33 =67(79)37竺=3印393944(80) 46 X =44444545(81)20062008 X007=2006:20°62007(82)7 x 22 x 1222(83)_910_9：10a 36x為弋(86) X101-Z =2825254 5 3 5 5(87)=-7 9 7 9 953515(88)9 X4+ 9 X4=9(89) 17X9 =理16 916(91) X 37451=

12、(1- )X 37451=1 X 37 - X 3745=36 45(92)2004 X 672003=(2003+1)X6720036767=2003X+ 1 X2003200367=672003(93)73 X 115816、1(72 +)X丄158116172 X+X8158=9 -1541、1=(164 +)X 20411411164 X+X412041(94) 166 丄-4120=41203»263X 25 +X44131 X 39 +(95) 4X 25 +4=-X 13 +43 x 264 133=3 X( 13 + 25 + 2)43= X 404=30(96)1 X( 2 2 -3 ) + 15 -173412172121 X 111 + 15 丄 X2117171212211,1X( 1 一+ 15 )17121221(97)2000 - 2000-20002001=2000 -=2000=200120022000 2001 20002001亠 20012000 20021993 19941(98) 1993 1992 1994(99)3-X 252 + 37.9 X 625(25-+12.5 )5625(19921) 19941199319921992 19941994 199319931992 199413