1.2×-3.2=4.7

简便计算.4.7*1.6+4.7*2.4125*18.9*0.085.87-0.18-0.826.45-(3.45-1.9)6.69+3.22+4.311.25*32*0.25125/(50/8)4.68*99+4.681.1+9.77+2.9+0.230.1+0.01+1+0.99+0.93.72-(0.72+1.3)2.5*3.1+2.4*3.1+5.1*3.10.25*48*1.2578*6.3+78*2.7+78(2.5+2.5+2.5)*0.41.3/2.58.9*9.948*0.2525.07-4.984.36+7.8+3.64+2.2(0.8*0.8*0.8)*1.25(1.25+1.25+1.25)*19*84.95-1.89-0.11-0.9533*12.8+66*12.8+12.88*0.5-8*0.3757.55-(3.55-2.8)7.6-3.22-1.783.89+9.2+2.11+0.85.6*0.8+5.6*0.7+5.6*0.528.9+32.2+0.1+0.89.88-(3.88-1.98)3.6*2.5+2.2*2.5+3.2*2.53.2*9.99.85-1.21-3.79-0.859+8*(2.2-1.25)7.6-2.98-0.022.6*9.8+9.8*7.2+0.2*9.83.2+9.6+4.8+1.49.8-3.25-1.75-0.83.2*0.25*0.25*0.25(好的在加150财富悬赏)
4.7*1.6+4.7*2.4=4.7*(1.6+2.4)=18.8125*18.9*0.08=125*0.08*18.9=1895.87-0.18-0.82=5.87-(0.18+0.82)=4.876.45-(3.45-1.9)=6.45-1.45=56.69+3.22+4.31=6.69+4.31+3.22=14.221.25*32*0.25=1.25*8=10125/(50/8)=(125*8)/50=204.68*99+4.68=4681.1+9.77+2.9+0.23=1.1+2.9+9.77+0.23=140.1+0.01+1+0.99+0.9=3.72-(0.72+1.3)2.5*3.1+2.4*3.1+5.1*3.10.25*48*1.2578*6.3+78*2.7+78(2.5+2.5+2.5)*0.41.3/2.58.9*9.948*0.2525.07-4.984.36+7.8+3.64+2.2(0.8*0.8*0.8)*1.25(1.25+1.25+1.25)*19*84.95-1.89-0.11-0.9533*12.8+66*12.8+12.88*0.5-8*0.3757.55-(3.55-2.8)7.6-3.22-1.783.89+9.2+2.11+0.85.6*0.8+5.6*0.7+5.6*0.528.9+32.2+0.1+0.89.88-(3.88-1.98)3.6*2.5+2.2*2.5+3.2*2.53.2*9.99.85-1.21-3.79-0.859+8*(2.2-1.25)7.6-2.98-0.022.6*9.8+9.8*7.2+0.2*9.83.2+9.6+4.8+1.49.8-3.25-1.75-0.83.2*0.25*0.25*0.25
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扫描下载二维码(2/1)^2*3..5=4.7m³什么意思_百度知道
(2/1)^2*3..5=4.7m³什么意思
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(2) =(4×2.1×2.5+9.7)÷(1.05÷0.5÷3+8.4÷0.7÷0.4...=(3/4+25/8/1.25)/(21/4-5/4*9/5)=(28-2.订矗斥匪俪睹筹色船姬5)/(21-9
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出门在外也不愁求解方程式,唉,把学的东西全还给老师了.0.1X+0.2(X-2)+0.3(X-4)+0.2(X-6)+0.1(X-8)+0.05(X-10)+0.05(X-12)=12.50.1X+0.2X-0.4+0.3X-1.2+0.2X-1.2+0.1X-0.8+0.05X-0.5+0.05-0.6=12.5X-4.7=12.5X=12.5+4.7X=17.2这个方程式是我们老大算出来的,要用于工作表里的,但是前面的我看懂了,有一点没懂就是,第二步的:X-4.7=12.5
是怎么算出来的.就是不明白啊,真晕死,.详细算法,谢了.初中一年级的东西,全忘记了
0.1X+0.2X-0.4+0.3X-1.2+0.2X-1.2+0.1X-0.8+0.05X-0.5+0.05-0.6=12.5这一步你写错了应该是0.1X+0.2X-0.4+0.3X-1.2+0.2X-1.2+0.1X-0.8+0.05X-0.5+0.05X-0.6=12.5这样就能得出下面的了
我知道你的意思,后面的0.05少写一个X,,,,,我要的是下一步的,,,
0.1x+0.2x+0.3x+0.2x+0.1x+0.05x+0.05x-0.4-1.2-1.2-0.8-0.5-0.6=12.5
(0.1+0.2+0.3+0.2+0.1+0.05+0.05)x-(0.4+1.2+1.2+0.8+0.5+0.6)=12.5
因为0.1+0.2+0.3+0.2+0.1+0.05+0.05=1
0.4+1.2+1.2+0.8+0.5+0.6=4.7
所以就是X-4.7=12.5
0.1x+0.2x+0.3x+0.2x+0.1x+0.05x+0.05x-0.4-1.2-1.2-0.8-0.5-0.6=12.5
(0.1+0.2+0.3+0.2+0.1+0.05+0.05)x-(0.4+1.2+1.2+0.8+0.5+0.6)=12.5
因为0.1+0.2+0.3+0.2+0.1+0.05+0.05=1
0.4+1.2+1.2+0.8+0.5+0.6=4.7
所以就是X-4.7=12.5
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科目:小学数学
4.5÷0.15=
0.42÷0.7=
&5.9×0.2=
0.48÷0.8=
0.25×1.3×4=
4.79+15.81=
0.3÷0.03=
0.56÷0.28=
7.25÷0.5=
4.2÷0.21=
0.15÷0.5=
1.25×3.4×8=
4.3-2.7+5.7=
3.56×0.2=
3.4+1.5+4.6=
3.4×0.04=
6.12+3.48=
5.2-3.2-1.8=
0.25×2.5=
0.89-0.48=
5.9-(3.2+0.9)=
科目:小学数学
4×5÷4×5=
0.25×4+4=
131+218+269+182=
120÷5÷3=
198-75-25=
120-20÷5=
59亿-58亿=
(1.3+3.5)÷0.6=
0.45÷1.25÷8=
2.5×7.6×4=
97.6÷0.02=
8.8-(0.25+0.4)=
0.25+87+0.75=
0.8-0.35×2=
0.1÷0.01×0.1=
9.9+9.9×99=
2.7×3.6+6.4×2.7=
720÷8÷9=
2.9+5.7+2.1=
2-0.16-0.64=
16.7+84.5-16.7=
6.8-(3.8+2.9)=
9×1.3+9×6.7=
5.5-5.25+5.2=
0.8×25-10=
42.8×25×4=
0.9÷0.01=
3×0.2×0.5=
0.96÷0.3=
2.5×0.7×0.8=
5.6×1.01=
8×(2.5+0.25)=
0.36+0.64=
64.32÷16=
72.8÷0.8=
8.4×0.2+1.6×0.2=
0.05×0.8=
2.56-0.37=
25×0.8×0.5=
3.5+3.5×3=
7.2×0.3+2.8×0.3=
(1.5+0.25)×4=
27+456+73=
2.87÷0.7=
24÷4+56÷4=
2.1×0.3÷2.1=
2.3-0÷8.1=
1.37-1.37÷1.37=
4.4÷(5×0.2)=
0.96÷0.06=
0.36×0.3=
0.35÷0.7=
13.65÷13=
4×0.8×0.25×1.25=
13+0.7÷0.7=
7.05×23.7+7.05×76.3=
0.125×3.2×2.5=
(12+23.1÷0.75)×0.4-5.12=
1.6×[(12-7.2)÷(0.84÷2.1)]=
科目:小学数学
题型:阅读理解
(1)438+203
(2)256+199
(3)416-302
(4)325-198
(5)278+498
(6)3.6+2.7+6.4+7.3
(8)1.3+4.25+3.7+3
(10)5-1.4-1.6
(11)30-8.12-4.13-7.75
(13)4.3-2.45+5.7-6.55
(14)125×48
(15)25×32
(16)35×1.4
(17)1.25×88
(18)0.25×444
(19)32×0.25×12.5
(20)25×80×0.04×125
(21)1.9×4×0.5
(22)25×1.25×4×0.8
(23)(1.6+1.6+1.6+1.6)×2.5
(24)(0.7+0.7…+0.7)×12.5(80个0.7相加)
(24)9.9×8.6+8.6
(25)99×5.4
(26)4.8×1.01
(27)95×101-95
(28)95×102-190
(29)95.6×18+0.4×18
(30)(-+)×12
(31)(+-)÷
(32)24×(+-)
(33)24÷(+-)
(34)1.25×3.6+1.25×+
(35)3.3×+0.75×+75%
(36)×6.6+7.5×
(37)9.56×180-95.6×8
(38)4.8×37+47×6.3
(39)9.5×8.8+0.12×95
(40)×21
(41)×33
(44)÷42
(45)6×0.75+5×-3÷4
(46)5.4÷1.2÷5
(47)270÷18
(48)120÷(1.2×4)
(49)73÷0.8÷12.5
(50)16÷2.5
(51)48÷1.25
(52)-(-)+
(53)84-(54-16)
(54)84-(54+16)
(56)3.6×31.4+43.9×6.4
(57)(+)×
(58)×+÷
(60)×-×
(61)×÷×
(62)-×-
(63)×[÷(+)]
(64)(0.9+5)×3+2.3
(65)56×
(66)+÷+
(67)(+)÷(+)
(68)÷(-)
(69)(-)÷
(70)7.2÷(5-0.75-0.25)
(71)6.4+3.6÷0.5+4.5
(72)(6.4+3.6)÷0.5+4.5
(73)495÷55+495÷45
(74)8÷0.4+8÷1.6
(75)0.9+99×0.9
(76)5.28-(1.62+2.28)
(78)4×(+)
(80)2-(+)-
(81)×+×
(82)×+×
(83)×9+
(84)(5+)×
(85)(+)×24
(86)(20+)×
(87)×39×
(88)×(+)
(89)(-)×12
(90)×(26×)
(92)17×-
(93)(+)×
(94)(+)÷
(95)(+)÷3
(96)(-)÷
(97)÷+÷
(98)×(10+)
(99)(21+)÷
(100)×+×
(101)÷+÷
(102)(-)÷
(103)×++
(104)_×-
(105)-(÷+)
(106)+×+
(107)1-÷-
(108)×+÷4
(109)5-(4+)
(111)7.46-0.83-2.17
(112)12.85-1.17-8.83+1.15
(113)4.5×102
(114)0.4×6.3×25
(115)(4.9+4.9+…+4.9)×2.5(16个4.9相加)
(116)7.5×199
(117)(+)×36
(118)1.2×5.7-1.2+5.3×1.2
(119)0.825×102-82.5
(120)46×
(121)560÷16÷5
(122)3÷2.5
(123)84+(54-16)
(124)+++
(125)-(÷+)
(126)3×(+)+
(127)7.2÷(5-0.75+0.25)
(128)725÷25+275÷25
(129)××
(130)×45-÷
(131)48×(-)
(132)×+×
(133)(32+)÷4
(134)÷÷
(135)46×
(136)×+÷9
科目:小学数学
观察已知算式,寻找规律填空.(1)1=1×2÷21+2=2×3÷21+2+3=3×4÷21+2+3+4=4×5÷21+2+3+4+5=5×6÷21+2+3+4+5+6+7=7×8÷21+2+3+…+n=n×(n+1)÷2(2)1×2=1×2×3÷31×2+2×3=2×3×4÷31×2+2×3+3×4=3×4×5÷31×2+2×3+3×4+4×5=4×5×6÷31×2+2×3+3×4+4×5+5×6=5×6×7÷31×2+2×3+3×4+…+n×(n+1)=n×(n+1)×(n+2)÷3(3)1×2×3=1×2×3×4÷41×2×3+2×3×4=2×3×4×5÷41×2×3+2×3×4+3×4×5=3×4×5×6÷41×2×3+2×3×4+3×4×5+4×5×6=4×5×6×7÷41×2×3+2×3×4+3×4×5+4×5×6+5×6×7=5×6×7×8÷41×2×3+2×3×4+…+n×(n+1)×(n+2)=n×(n+1)×(n+2)×(n+3)÷4猜一猜:1×2×3×4+2×3×4×5+3×4×5×6=3×4×5×6×7÷5.
科目:小学数学
题型:解答题
180÷60=12×25=0÷90=4×5÷4×5=0.25×4+4=131+218+269+182=25×6×4=420÷35=36×5×4=120÷5÷3=198-75-25=120-20÷5=59亿-58亿=(1.3+3.5)÷0.6=75÷2.5=0.45÷1.25÷8=2.5×7.6×4=97.6÷0.02=8.8-(0.25+0.4)=0.25+87+0.75=0.8-0.35×2=0.1÷0.01×0.1=9.9+9.9×99=2.7×3.6+6.4×2.7=720÷8÷9=2.9+5.7+2.1=2-0.16-0.64=16.7+84.5-16.7=6.8-(3.8+2.9)=9×1.3+9×6.7=5.5-5.25+5.2=0.8×25-10=42.8×25×4=7.2+2.8=0.9÷0.01=3.5+7.6=3×0.2×0.5=0.96÷0.3=1.5×0.4=7÷0.25=2.5×0.7×0.8=8-2.5=16÷1.6=5.6×1.01=8×(2.5+0.25)=0.36+0.64=64.32÷16=72.8÷0.8=8.4×0.2+1.6×0.2=8.4÷4.2=0.05×0.8=2.56-0.37=1.23×3=25×0.8×0.5=12×2.5=3.2÷1.6=3.5+3.5×3=19.6÷2=8.8÷2.2=3.9+2.03=7.2×0.3+2.8×0.3=13.8+9.9=2.4×2.5=0.75×4=(1.5+0.25)×4=4.2÷0.1=4.2÷3.5=2.14-0.9=27+456+73=12÷0.3=2.87÷0.7=13÷4=24÷4+56÷4=2.1×0.3÷2.1=2.3-0÷8.1=1.37-1.37÷1.37=4.4÷(5×0.2)=7×1.3=0.96÷0.06=0.36×0.3=0.35÷0.7=13.65÷13=4×0.8×0.25×1.25=13+0.7÷0.7=7.05×23.7+7.05×76.3=0.125×3.2×2.5=(12+23.1÷0.75)×0.4-5.12=728+199=637-201=16×25=1.6×[(12-7.2)÷(0.84÷2.1)]=1+2+3+4+5脳0=_百度知道
1+2+3+4+5脳0=
1+2+3+4+5脳0

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