(4)180题分数乘除法简便运算(有问题详解)

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分数乘除法简便运算专项练习180题(有答案)(1)×101﹣,

(2)×÷×,(3)×99+,(4)( +)×,(5)×+×﹣,(6)3×25,(7)36×,(8)(﹣)×,(9),(10),(11),(12),(13),

(14)85×,

(15)×25,

(16)(+)×7×5,(17)×+×,(18)×12+×19+,(19)(﹣)×24 (20)×+×

(21)(22)(+)×15×17 (23)×101,

(24)×+×

(25)(+)×24 (26)××13×

(27)×12﹣

(28)4.8×+4.8÷,

(29)×+×,

(30)+++…+

(31)

(32)

(33)25×(+)×17 (34)×18+2×17 (35)11×(﹣)×17 (36)×86 (37)

(38)×﹣×,(39),

(40)×+÷9,(41)32×,(42)39÷7+31×,

(43)÷[(﹣)+(﹣)],(44)2008×

(45)+++…+

(46)(+)×27×9,(47)××,(48)××…××,(49)(﹣)×60,(50)×+×,

(51)25×8,

(52)×(15×)×,

(53)×2005,(54)××13×11,(55)(+)×,(56)×21+28×,(57)×+×﹣,(58)( +)×8×4,(59)34÷35×36,(60)×+×,

(61)×+××(﹣),(62)138×,

(63)4×(﹣)×7,(64)×+×,

(65)×+,

(66)(﹣)×,

(67)××,(68)×+×+,(69)45×+×43,(70)×,(71),(72)(+﹣)×24 (73)×+÷

(74)(+﹣)÷,(75),

(76)÷5+×,

(77)13﹣(2﹣),(78)(+﹣﹣)÷,(79)2004×

(80)8﹣3﹣1+1,(81),

(82),

(83)×+÷﹣1÷4,(84)76×(﹣)+23×(+)﹣53×(﹣),(85)×

(86)27×(﹣)×37

(87)17×+×62+17÷48

(88)2013÷﹣2013÷2012

(89)

(90)

(91)

(92)

(93)×+×

(94)(3×)×4××(95)×+×(96)14×﹣(97)(+)×12 (98)×+×(99)

(100)

(101)×2007 (102)×101﹣

(103)

(104)

(105)×(9﹣)

(106)12.1﹣()×105 (107)(﹣+)×28+10.1 (108)(++)×2 (109)×80 (110)8×

(111)5.5×+×

(112)897×﹣+104×0.375 (113)×86+5.75×(3.5﹣)(114)

(115)

(116)×24

(117)

(118)20÷﹣÷

(119)14÷14

(120)333387×79+66661×790 (121))×48

(122)18×+2×﹣(123)41×+51×+61×(124)2001×

(125)1998÷

(126).

(127)(﹣)×23×35,

(128)×+÷4 (129)48×(+﹣)(130)35×﹣+11×(131)××18×(132)×31﹣(133)(90+)×(134)34×(135)35×

(136)×2006 (137)×39+×27 (138)×35+×17 (139)×5+×5+×10 (140)7×13×(﹣)(141)×+×

(142)×+×+×(143)×+×,(144)(++)×12,(145),

(146)×25××19,(147)(+)×54,(148)(+)×8×7,(149),

(150)×+×+×,(151)20112011,(152)139×﹣137×(153)2012×

(154)+++++…+ (155)×2008﹣2007,

(156),

(157),

(158),

(159)++++,

(160)3+6×0.25+0.625×6+6×0.125,(161)×+×+×,(162)×+×+×,

(163)[2+(5.4﹣3)×1]÷3 (164)×(4.85÷﹣3.6+6.15×3)(165)

(166),

(167)2011÷2011+

(168)11×+13×+15×+17×+

(169)()÷(+﹣)

(170)148×+86×+74×,

(171)2011×﹣2011×﹣2011×,

(172),(173)13+86×0.25+86×0.625+86×

(174),(175).

(176)(1+++)×(+++)﹣(1++++)×(++),

(177)238÷

(178)2000÷

(179)(+++)×(+++)﹣(++++)×(++)(180),

分数乘除法简便运算180题参考答案:

(1)×101﹣,

=×(101﹣1),=×100,

=70;

(2)×÷×,

=×××,

=(×)×(×),=×1,

=;

(3)×99+,

=×(99+1),

=×100,

=60;

(4)( +)×,=×,

=;

(5)×+×﹣,

=(+﹣1)×,

=×,

=;

(6)3×25,

=(3+)×25,

=3×25+×25,

=75+20,

=95;

(7)36×,

=(35+1)×,

=35×+1×,

=34+,

=34;

(8)(﹣)×,=×﹣×,

=3﹣2,

=1.

(9),

=12×+12×,

=4+3,

=7;

(90),

=×(+),

=×1,

=;

(11),

=(30+1)×,

=30×+1×,

=19+,

=19;

(12),=×48﹣×48,

=8﹣6,

=2;

(13),

=×(11﹣1),

=×10,

=7.

(14)85×,

=(86﹣1)×,

=86×﹣1×,

=3﹣,

=2;

(15)×25,

=×(24+1),

=×24+×1,

=5+,

=5;

(16)(+)×7×5,

=×7×5+×7×5,

=15+7,

=22

(17)×+×,

=×+×,

=×(+),

=×,

=;

(18)×12+×19+,

=×(12+19+1),

=×32,

=20.

(19)(﹣)×24

=×24﹣×24

=6﹣4

=2;

(20)×+×

=×+×

=×(+)

=;

(21)

=×+×

=(+)×

=1×

=.

(22)(+)×15×17 =(+)×(15×17)

=×15×17+×17×15

=17+30

=47;

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