计算题答案.docx
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计算题答案.docx
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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=0.42…
(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=4
(320)3.4x÷3.4=2
X=2
(321)32÷4x=8
X=1
(322)5x-39=56
X=19
(323)18+5x=21
X=0.6
(324)(5x-12)÷3=25
X=17.4
(325)3x+x+6=28
X=5.5
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