计算题答案.docx

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计算题答案.docx

计算题答案

(1)

0.46×300=138

(2)

2.05×6=12.3

(3)

2.3×12=27.6

(4)

12.4×7=86.8

(5)

0.86×7=6.02

(6)

3.3×16=52.8

(7)

12.8×42=537.6

(8)

0.19×40=7.6

(9)

0.32×15=4.8

(10)

6.7×0.3=2.01

(11)

2.4×6.2=14.88

(12)

5.4×1.07=5.778

(13)

0.45×0.6=0.27

(14)

0.56×0.04=0.0224

(15)

3.7×4.6=17.02

(16)

0.48×1.5=0.72

(17)

0.29×0.07=0.0203

(18)

0.05×0.15=0.0075

(19)

2.4×1.1=2.64

(20)

2.4×1.5=3.6

(21)

1.2×0.4=0.48

(22)

0.11×1.2=0.132

(23)

0.35×1.2=0.42

(24)

3.2×2.5=8

(25)

1.2×0.9=1.08

(26)

56×1.3=72.8

(27)

2.6×1.08=2.808

(28)

1.8×23=41.4

(29)

7×0.86=6.02

(30)

0.37×0.4=0.148

(31)

0.6×0.39=0.234

(32)

1.06×25=26.5

(33)

27×0.43=11.61

(34)

0.08×0.14=0.0112

(35)

0.055×0.06=0.0033

(36)

0.39×2.9=1.131

(37)

0.18×8.45=1.521

(38)

0.58×0.08=0.0464

(39)

4.5×0.002=0.009

(40)

3.7×200=740

(41)

0.072×0.15=0.0108

(42)

1.7×0.45=0.765

(43)

6.5×10(口算)=65

(44)

3.78×100(口算)=378

(45)

82÷10(口算)=8.2

(46)

560÷100(口算)=5.6

(47)

4080÷1000(口算)=4.08

(48)

3.06×36=110.16

(49)

15.6×15=234

(50)

0.82×2=1.64

(51)

3.2×7=22.4

(52)

2.07×30=62.1

(53)

3.95×42=165.9

(54)

0.10×25(口算)=2.5

(55)

2.7×60=162

(56)

0.76×8.9=6.764

(57)

2.02×5.5=11.11

(58)

0.38×0.25=0.095

(59)

0.72×3.5=2.52

(60)

8.64×2.8=24.192

(61)

0.56×0.14=0.0784

(62)

0.76×8.9=6.764

(63)

3.14×0.08=0.2512

(64)

1.5×2.8=4.2

(65)

0.32×2.05=0.656

(66)

7.38×0.25=1.845

(67)

0.48×0.3=0.144

(68)

0.12×0.24=0.0288

(69)

0.45×4.8=2.16

(70)

48.7×0.06=2.922

(71)

0.98×1.02=0.9996

(72)

0.76×3.2=2.432

(73)

1.02×0.76=0.7752

(74)

0.033×3=0.099

(75)

0.56×1.07=0.5992

(76)

7.5×4.3=32.25

(77)

2.4×6.7=16.08

(78)

3.5×0.59=2.065

(79)

14.2×0.27=3.834

(80)

0.36×4.4=1.584

(81)

12.5×3.4×0.8

=12.5×0.8×3.4

=10×3.4

=34

(82)

4.36×2.5+5.64×2.5

=2.5×(4.36+5.64)

=2.5×10

=25

(83)

6.5×2.4+7.6×6.5

=6.5×(2.4+7.6)

=6.5×10

=65

(84)

37×0.12×8

=4.44×8

=35.52

(85)0.4×63×2.5

=0.4×2.5×63

=1×63

=63

(86)3.54×9.9+3.54×0.1

=3.54×(9.9+0.1)

=3.54×10

=35.4

(87)

0.72×10.1

=0.72×(10+0.1)

=0.72×10+0.72×0.1

=7.2+0.072

=7.272

(88)

1.25×(8+0.8)

=1.25×8+1.25×0.8

=10+1

=11

(89)

3.6+2.4×0.06

=3.6+0.144

=3.744

(90)

3.72×99+3.72

=3.72×(99+1)

=3.72×100

=372

(91)

9.98×9.9

=9.98×(10-0.1)

=9.98×10-9.98×0.1

=99.8-0.998

=98.802

(92)

1.25×0.9×0.8

=1.25×0.8×0.9

=1×0.9

=0.9

(93)

4×(6.3×2.5)

=4×2.5×6.3

=10×6.3

=63

(94)

6.4×0.25×12.5

=8×0.8×0.25×12.5

=(8×0.25)×(0.8×12.5)

=2×1

=2

(95)

2.5×16.7-2.5×0.7

=2.5×(16.7-0.7)

=2.5×16

=2.5×4×4

=10×4

=40

(96)

2.9×0.45+0.29×4.2+0.029×13

=2.9×0.45+2.9×0.42+2.9×0.13

=2.9×(0.45+0.42+0.13)

=2.9×1

=2.9

(97)

43×11.8+5.7×118

=43×11.8+57×11.8

11.8×(43+57)

=11.8×100

=1180

(98)

0.36×1.5-0.45

=0.54-0.45

=0.09

(99)

0.38×0.23+0.62×0.23

=0.23×(0.38+0.62)

=0.23×1

=0.23

(100)

0.8×9.58×1.25

=0.8×1.25×9.58

=1×9.58

=9.58

(101)

5.45+0.65×4.7

=5.45+3.055

=8.505

(102)

25×10.7-25×0.7

25×(10.7-0.7)

=25×10

=250

(103)

6.4×99

=6.4×(100-1)

=6.4×100-6.4×1

=640-6.4

=633.6

(104)

0.65×202

=0.65×(200+2)

=0.65×200+0.65×2

=130+1.3

=131.3

(105)

0.25×4.78×4

=0.25×4×4.78

=1×4.78

=4.78

(106)

2.5×(0.77×0.4)

=2.5×0.4×0.77

=1×0.77

=0.77

(107)

7.2×8.4+2.8×8.4

=8.4×(7.2+2.8)

=8.4×10

=84

(108)

0.034×0.5×0.6

=0.034×(0.5×0.6)

=0.034×0.3

=0.0102

(109)

101×0.45

=(100+1)×0.45

=100×0.45+1×0.45

=45+0.45

=45.45

(110)

2.73×99

=2.73×(100-1)

=2.73×100-2.73×1

=273-2.73

=270.27

(111)

4.75×99+4.75

=4.75×(99+1)

=4.75×100

=475

(112)

4.8×0.25

=4×1.2×0.25

=4×0.25×1.2

=1×1.2

=1.2

(113)

1.5×105

=1.5×(100+5)

=1.5×100+1.5×5

=150+7.5

=157.5

(114)

0.78×98

=0.78×(100-2)

=0.78×100-0.78×2

=78-1.56

=76.44

(115)

0.5×2.33×8

=0.5×8×2.33

=4×2.33

=9.32

(116)

1.2×2.5+0.8×2.5

=2.5×(1.2+0.8)

=2.5×2

=5

(117)

2.02×8.5

=(2+0.02)×8.5

=2×8.5+0.02×8.5

=17+0.17

=17.17

(118)

56×1.25

=7×8×1.25

=7×(8×1.25)

=7×10

=70

(119)

1.6×7.5×1.25

=2×0.8×7.5×1.25

=(2×7.5)×(0.8×1.25)

=15×1

=15

(120)

0.8×0.25×0.4×12.5

=(0.8×12.5)×(0.25×0.4)

=10×0.1

=1

(121)

2.96×40

=(3-0.04)×40

=3×40-0.04×40

=120-1.6

=118.4

(122)

9.8×25

=(10-0.2)×25

=10×25-0.2×25

=250-5

=245

(123)

97×8.5

=(100-3)×8.5

=100×8.5-3×8.5

=850-25.5

=824.5

(124)

0.65×202

=0.65×(200+2)

=0.65×200+0.65×2

=130+1.3

=131.3

(125)

4.5×4×5.5×8

=18×5.5×8

=99×8

=792

(126)

4.38×98

=4.38×(100-2)

=4.38×100-4.38×2

=438-8.76

=429.24

(127)

1.25×8.8

=1.25×(8+0.8)

=1.25×8+1.25×0.8

=10+1

=11

(128)

1.25×8×2.5×4

=(1.25×8)×(2.5×4)

=10×10

=100

(129)

50.4×1.9-1.8

=95.76-1.8

=93.96

(130)

3.76×0.25+25.8

=0.94+25.8

=26.74

(131)

3.5+6.5×8.3

=3.5+53.95

=57.45

(132)

2.5+7.5×55

=2.5+412.5

=415

(133)

10.3-0.3×8.6

=10.3-2.58

=7.72

(134)

5.9×19.8-9.8

=116.82-9.8

=107.02

(135)

3.5×14.6-4.6×5

=51.1-23

=28.1

(136)

3.2×1.25×2.5

4×0.8×1.25×2.5

=(4×2.5)×(1.25×0.8)

=10×1

=10

(137)

1.25×64

=1.25×8×8

=10×8

=80

(138)

0.37×99+0.37

=0.37×(99+1)

=0.37×100

=37

(139)

0.28×9=2.52

(140)

2.4×23=55.2

(141)

31.6×18=568.8

(142)

0.47×80=37.6

(143)

4.6×0.8=3.68

(144)

3.2×2.6=8.32

(145)

2.7×1.05=2.835

(146)

0.25×0.8=0.2

(147)

2.6×19=49.4

(148)

5.2×0.48=2.496

(149)

2.8×5.9=16.52

(150)

3.4×0.65=2.21

(151)

5.4×3.8=20.52

(152)

0.36×2.5=0.9

(153)

0.42×0.04=0.0168

(154)

0.085×0.24=0.0204

(155)

0.43×56=24.08

(156)

0.058×0.25=0.0145

(157)

54×0.035==1.89

(158)

7.6×0.008=0.0608

(159)

15.8×6=94.8

(160)

3.6×8.5=30.6

(161)

18.4×0.36=6.624

(162)

1.25×0.024=0.03

(163)

3.63÷3=1.21

(164)

25.6÷4=6.4

(165)

93.75÷75=1.25

(166)

0.39÷3=0.13

(167)

8.5÷5=1.7

(168)

5.16÷3=1.72

(169)

21.6÷9=2.4

(170)

85.1÷37=2.3

(171)

52.5÷25=2.1

(172)

33.6÷3=11.2

(173)

9.8÷7=1.4

(174)

20.4÷24=0.85

(175)

0.32÷8=0.04

(176)

0.84÷21=0.04

(177)

96÷15=6.4

(178)

12.96÷12=1.08

(179)

4.32÷16=0.27

(180)

0.72÷8=0.09

(181)

1.53÷34=0.045

(182)

0.78÷12=0.065

(183)

2.4÷28=0.0857142857142…

(184)

60÷25=2.4

(185)

10.88÷17=0.64

(186)

24.96÷12=2.08

(187)

24÷15=1.6

(188)

1.26÷12=0.105

(189)

1.35÷15=0.09

(190)

96.6÷23=4.2

(191)

23.75÷9.5=2.5

(192)

5.58÷3.1=1.8

(193)

49.4÷0.26=190

(194)

0.56÷0.25=2.24

(195)

0.928÷5.8=0.16

(196)

1÷0.16=6.25

(197)

3.6÷2.4=1.5

(198)

158÷0.5=316

(199)

158÷50=3.16

(200)

1.58÷0.05=31.6

(201)

15.6÷12=1.3

(202)

46.8÷0.45=104

(203)

3.52÷5.5=0.64

(204)

21÷3.5=6

(205)

328÷16=20.5

(206)

1.35÷27=0.05

(207)

0.646÷19=0.034

(208)

319.46÷5=63.892

(209)

0.03÷0.8=0.0375

(210)

2.2÷3=0.73333…

(211)

5.3÷11=0.4818181…

(212)

0.56÷3.6=0.1555…

(213)

3.7÷66=0.05606060…

(214)

0.3÷40=0.0075

(215)

72÷15=4.8

(216)

14.21÷7=2.03

(217)

25.5÷6=4.25

(218)

7.83÷9=0.87

(219)

0.54÷6=0.09

(220)

6.3÷14=0.45

(221)

86÷16=5.375

(222)

1.26÷28=0.045

(223)

0.416÷32=0.013

(224)

6.6÷4=1.65

(225)

37.5÷6=6.25

(226)

43.5÷29=1.5

(227)

28.6÷11=2.6

(228)

18.9÷27=0.7

(229)

20.4÷24=0.85

(230)

1.35÷15=0.09

(231)

3.64÷52=0.07

(232)

24÷15=1.6

(233)

1.26÷18=0.07

(234)

5.04÷6=0.84

(235)

76.5÷45=1.7

(236)

45÷36=1.25

(237)

0.84÷28=0.03

(238)

150÷500=0.3

(239)

7.65÷0.85=9

(240)

62.4÷2.6=24

(241)

2.38÷0.34=7

(242)

0.544÷0.16=3.4

(243)

12.6÷0.28=45

(244)

2.19÷0.3=7.3

(245)

51.3÷0.27=190

(246)

5.58÷3.1=1.8

(247)

25.6÷0.032=800

(248)

0.84÷3.5=0.24

(249)

5.88÷0.56=10.5

(250)

7.05÷0.47=15

(251)

2.6÷0.13=20

(252)

16÷40=0.4

(253)

15÷20=0.75

(254)

1.44÷1.8=0.8

(255)

11.7÷2.6=4.5

(256)

4.48÷3.2=1.4

(257)

5.98÷0.23=26

(258)

21÷1.4=15

(259)

19.76÷5.2=3.8

(260)

8.84÷1.7=5.2

(261)

10.8÷4.5=2.4

(262)

6.21÷0.03=207

(263)

2.7÷7.5=0.36

(264)

15÷0.06=250

(265)

4.68÷1.2=3.9

(266)

5.2÷0.32=16.25

(267)

8.16÷0.34=24

(268)

161÷0.46=350

(269)

6÷1.5=4

(270)

49.5÷0.=11045

(271)

2.29÷1.1=2.0818181…

(272)

153÷7.2=21.25

(273)

23÷3.3=6.969696…

(274)

5.7÷9=0.6333…

(275)

5÷8=0.625

(276)

6.64÷3.3=2.0121212…

(277)

9.4÷6=1.5666…

(278)

40.32÷24=1.68

(279)

6.92×0.84=5.8128

(280)

111÷0.3=370

(281)

2.8×6.25=17.5

(282)

2.07÷0.023=90

(283)

1.23÷0.03=41

(284)

42÷28=1.5

(285)

2.5×3.6=9

(286)

7.2÷1.6+0.8

=4.5+0.8

=5.3

(287)

(16.8+1.47)÷0.7

=18.27÷0.7

=26.1

(288)

19.8÷3.3=6

(289)

18×0.45=8.1

(290)

0.75×18÷0.15

=13.5÷0.15

=90

(291)

21.36÷0.8-12.9

=26.7-12.9

=13.8

(292)

2.07÷0.23÷0.45

=9÷0.45

=20

(293)

7.28+3.2÷2.5

=7.28+1.28

=8.56

(294)

1.08×0.8÷0.27

=0.864÷0.27

=3.2

(295)

2.05÷0.82+33.6

=2.5+33.6

=36.1

(296)

44.28÷0.9÷4.1

=49.2÷4.1

=12

(297)

9.07-22.78÷3.4

=9.07-6.7

=2.37

(298)

40.5÷0.81×0.18

=50×0.18

=9

(299)

4.8×(15÷2.4)

=4.8×6.25

=30

(300)

60.75÷0.5

=8÷0.5

=16

(301)

3.75÷0.25-2.75

=15-2.75

=12.25

(302)x-0.36x=16

解:

0.64x=16

0.64x÷0.64=16÷0.64

x=25

(303)(100-3x)÷2=8

解:

(100-3x)÷2×2=8×2

100-3x=16

100-3x+3x=16+3x

100=16+3x(可以不写)

16+3x=100

16+3x-16=100-16

3x=84

3x÷3=84÷3

x=28

(304)2x+23×4=134

x=21

(305)3(x+2.1)=10.5

x=1.4

(306)8-4x=6

x=0.5

(307)(x-3)÷2=7.5

x=18

(308)6x-x=7.5

X=1.5

(309)3x-8=25

X=11

(310)8+8x=88

X=10

(311)2x÷0.95=1.8

X=0.855

(312)8(5x-6.2)=41.6

X=2.28

(313)4x+1.2×5=24.4

X=4.6

(314)32-4x=16

X=4

(315)(75-5x)÷5=15

X=0

(316)2(x-2.6)=8

X=6.6

(317)47-x=12.7

X=34.3

(318)x-47=12.7

X=59.7

(319)12.8÷x=3.2

X

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