1、分数乘除法简便运算100题有标准答案(21)84336(9 +27 )X 3X 9(2)(8 -3 )X151(7 -2)(4)55 516X35 X+ 9 9X 12353/、 676 、22 X4+27X4(6) 163X 7-13 X汽275334 33X6 -X 6(8) 一 +-X-+ -X-1212()887 8737X3356(10) 25 X24153103 37721X-+21X-(12)X 101-1044 4108888339X9 95(14)5 X 99 +5484(7+ 9)X：7 X 9(16)毎X25345536i X35(18)(6 -一 )X9丿(1)(3)(
2、5)(9)(11)(13)(15)18(17)515X 6(19)X5110(20)232535(22)(23)7(24)(25)20(26)12123 一 003 一 003 - 00(28) 6337（29）12(30)2915(32)X 411(33) 54X(8(34)12182472(37) 67(39) 9(41)(43)11331148(44) 6.8 X15(46) 5 + -8x60.375(38)(36)11121144+ 1 X3.25X 15x6(40)(42)(45)(47)83737(50)5 X3 +5 X 5788 7(51)A X工+ 5 一101516279
3、(53)2 X7+2X 533(55)(5X4+4)_47777(57)37433-X 一 + X 3-811118(59)575 991212 5(495(61)(32+ 2(48) 1192513242119240.690 +2655781579 12101X42588 )X 89(52) 18X(9 12(54)( 1 -丄)X( 24- )12(58) 3331 X3113迢 X 2 +Z X -9 + A25 16 25 16 163(62) (25+ -)463 (5 上(64) 9 213)(65)| G 3)316423(67)3(66)( 21 X 3 +714(68)石亠X
4、 1011(69)305 6 _Z (70) 6 5 10(71) 1 X58+81 X41 +84 5 2(73) 5 X6 + 5(74)53(75) 5X 153 -0.6X 53(76)4(41+1)1(77)110X ?)(78)(15X 11XX4- 77 一也37 39/C八 2006(81) 2008 X00713X17(79)9(83) W417(84)936 X 3711(85)乜111313X 33(86)X01-Z2525(87)3一 4(91)(93)7344X 37451 X 115 81(94) 166 -4120(92) 2004 X -672003X 39 +
5、 X 25 +(95) 4 426134 2 3(96)1 X( 2 -)17 3 42000(97)2000 十 2000-200115 12亠171993 1994 1(98) 1993 1992 1994(99)3 3 X 25 2 + 37.9(100) ( 9 2+7 2 )(2+5)分数乘除法简便运算100题答案(1)+27)x 3X 9 =313（2）詹-)x6=015 0(3)(7 -1918(4)(5)+27113613X 5-1313126 - 126 =1(9)37 X 35= 33535=5(12)15102121(14)8 =0(16)8 ) X 7 X 9=92(1
6、7)3436 X 35(35+1)34X 一35=343435X(25+5 )X(10)252519257(W(14)(16)(18)(2(20) 32X- +-8(30+)24101-(25-1 )7一 =701099 +4343 =605X25=955 189 ) XE =1(21)10(22)35=7-(23)7(24)9=5(25)20=12-(26)12129 123(27)8 -(28)633762=37 3762(29)(30)29X (15 X 31 )3031(32)X 15 =29(32)X 4= 10311(33)854X( 8 -55 )=3(34)12182472=1
7、09(36)110.3752空113 =0(36)(38)(39)(42)11111925212519=191348=58(38)122424=71111=64(40)(42)2655781573=7501212=5(43)3 53=60(45) 6.8 X + - X3.2=2(45)4101 X5 525(46)-+ 5 X 15 =10(47)8_81-8=1 8 81515(48)1 X6 + 2 X6 = 6(49)(90 +丄)X5353344240.68837377=16258988(50)5 X3 +5 X557887 =Z 7(51)1 X邑+ 510 1(52)18X(4
8、+-)=231516279=396(53)2 X7+2X 5 =8(54)(1 _ 1)X(24 -)=1336125(55)(5X4+4)-4 12(56)1(-+丄)X丄=37777=753513(57)337X + 1-X33 =33(58) 3338X 3 =100081111883(59)575952(60) 2525912125 =:93456 =1151(62)(62) (25 +)1+ 14=1034415759139497 X2222(83)10X 17+ WX 17=109281111132036 X37 =37(85)13-13X 33 =337745 35_ 5X101
9、-=28(87)252579 79=9(82)(84)(86)X14_5=9=916(89) 17X 磊5 3 59 X 3 + 9(88)2003=1 X 37 -X 3745=2003=67X旦200367+ 1 X旦2003200311(93)73 X -15816、1=(72 +)X -158=72 X 1 +X 1815 8C 2=9 1594) 166 -1 - 412041、1=(164 +)X 2041141 1=164 X+X 4120 41=4 1201 X 39 +4=36 453X 25 +4(95)26 X色4 133X 13 +X 26413X( 13 + 25 +
10、 24 2 3(96)1 工 X( 2 -)+ 15 1221 X仃111 + 15 1 X 兰12 12 1721=_ X17=21(1口 + 15 丄)12 12(97)2000 - 2000 20002001=2000 十2000 2001 20002001=200020012000 200220012002(98) 1993 1992 1994(1992 1) 1994 11993 1992 19941992 1994 1993 1993 1992 1994=1(99)3+ 37.9 X 652 2(25+12.5 )X 6-552 2 2+ 25 三 X 6- + 12.5 X 65 5 5(3.6+6.4 ) X 25.4 + 12.5 X 8X 0.8=254 + 80=3342 2(100) (92+72 )7 9/ 65 丄 65、7 91 1=65 X ( + ) 7 9=65 - 5(5 + 5)7 91 1十5 X (- + -)7 9
