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直接写出得数×3=6×=÷=4÷=÷4=+=-=××=
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×3=6×=÷=4÷=18÷4=+=-=××=
为您推荐：
除以一个分数，等于乘这个分数的倒数；分数乘整数或分数，首先分子或整数与分母约分，然后分子或分母分别相乘；异分母分数相加减，首先通分，化成相同分母，然后分子直接相加减，分母不变；即可得解．
本题考点：
分数的加法和减法
考点点评：
此题考查了分数的加减乘除的计算方法，要掌握约分、通分的意义．
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一、解方程.x+（1+15％）=300.5x=0.125*0.4二、计算下面各题,能简算的要简算.12分之7*[1÷（6分之1+8分之1）]9分之2*4分之3+0.75+9分之7*75％4分之1÷12分之5+5分之2）÷8分之75分之1*100分之47+100分之53*20％
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一、解方程.x+（1+15％）=30x+1.15=30移项x=30-1.15x=28.850.5x=0.125*0.40.5x=0.05两边除以0.5x=0.05÷0.5x=0.1二、计算下面各题,能简算的要简算.7/12*[1÷（1/6+1/8）]=7/12*1/[(8+6)/6*8]=7/12*(6*8/14)=7/12*48/2*7=48/12*2=22/9*3/4+0.75+7/9*75％=2/9*3/4+3/4+7/9*3/4=(2/9+1+7/9)*3/4=2*3/4=3/21/4÷(5/12+2/5）÷(7/8)=(1/4)÷[(25+24)/60*7/8]=60*8/(4*49*7)=120/3431/5*47/100+53/100*20％ =1/5*47/100+53/100*1/5=1/5*(47/100+53/100)=1/5*1=1/5
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扫描下载二维码CAS No. -3;-2;-2;-0;-1;; (5,11,17,23,29,35,41,47-octa-tert-butylnonacyclo[43.3.1.1~3,7~.1~9,13~.1~15,19~.1~21,25~.1~27,31~.1~33,37~.1~39,43~]hexapentaconta-1(49),3(56),4,6,9(55),10,12,15(54),16,18,21(53),22,24,27(52),28,30,33(51),34,36,39(50),40,42,45,47-tetracosaene-49,50,51,52,5 )
Molecular Formula: C88H112O8Molecular Weight:
Identification of -3;-2;-2;-0;-1;;
Molecular Formula:
CAS Registry Number:
-3;-2;-2;-0;-1;;
5,11,17,23,29,35,41,47-Octa-tert-butylnonacyclo[43.3.1.1~3,7~.1~9,13~.1~15,19~.1~21,25~.1~27,31~.1~33,37~.1~39,43~]hexapentaconta-1(49),3(56),4,6,9(55),10,12,15(54),16,18,21(53),22,24,27(52),28,30,33(51),34,36,39(50),40,42,45,47-tetracosaene-49,50,51,52,53,54,55,56- nonacyclo[43.3.1.1~3,7~.1~9,13~.1~15,19~.1~21,25~.1~27,31~.1~33,37~.1~39,43~]hexapentaconta-1(49),3,5,7(56),9,11,13(55),15,17,19(54),21,23,25(53),27,29,31(52),33,35,37(51),39,41,43(50),45,47-tetracosaene-49,50,51,52,53,54,55,56-octol, 5,11,17,23,29,35,41,47-octakis(1,1-dimethylethyl)-
InChI=1/C88H112O8/c1-81(2,3)65-33-49-25-51-35-66(82(4,5)6)37-53(74(51)90)27-55-39-68(84(10,11)12)41-57(76(55)92)29-59-43-70(86(16,17)18)45-61(78(59)94)31-63-47-72(88(22,23)24)48-64(80(63)96)32-62-46-71(87(19,20)21)44-60(79(62)95)30-58-42-69(85(13,14)15)40-56(77(58)93)28-54-38-67(83(7,8)9)36-52(75(54)91)26-50(34-65)73(49)89/h33-48,89-96H,25-32H2,1-24H3
Molecular Structure:
Chemical Properties
Molecular Weight:
1.095g/cm3
Melting Point:
411-412 °C(lit.)
Refractive index:
Safety Data of -3;-2;-2;-0;-1;;
Related Products Information
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Nonacyclo[43.3.1.13,7.19,13.115,19.121,25.127,31.1()
Nonacyclo[43.3.1.13,7.19,13.115,19.121,25.127,31.1()
Nonacyclo[43.3.1.13,7.19,13.115,19.121,25.127,31.1()
Nonacyclo[43.3.1.13,7.19,13.115,19.121,25.127,31.1()
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Updatetime:Dec 28 2017
FOB Price:3&USD/Kilogram
Purity:95%, 99%
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DetailDesc:Name: Nonacyclo[43.3.1.13,7.19,13.115,19.121,25.127,31.133,37.139,43]hexapentaconta-1(49),3,5,7(56),9,11,13(55),15,17,19(54),21,23,25(53),27,29,31(52),33,35,37(51),39,41,43(50),45,47-tetracosaene-49,50,51,52,53,54,55,56-octol,5,11,17,23,29,35,41,47-octakis(1,1-dimethylethyl)- Syn...
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MISR EL AMRIA SPINNING
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HUNTER FAN COMPANY
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MERVYN''S,
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&28349.82 KG
FURNIDEA CO.,LTD.
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MARK FASHION WEAR(PVT)LTD, UNIT-2
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&&P.O.NO. 5375627
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SIN HENG TOWEL LTD.,PART.
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&LOS ANGELES
&&P.O.NO. 5486423
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ROYAL KING INFANT PRODUCTS CO.,LTD.
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(CEILING FANS)
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CEILING FANS
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&LONG BEACH
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&LOS ANGELES扫二维码下载作业帮
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下载作业帮安装包
扫二维码下载作业帮
3亿+用户的选择
直接写得数
100×0.4%=
12÷（+）=
（+-）×30=
1÷0.1×1÷0.1=
作业帮用户
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1÷0.01=100，
100×0.4%=0.4，
12÷（+）=，
8-8÷9=7，
（+-）×30=11，
1÷0.1×1÷0.1=100，
为您推荐：
÷÷6，1÷0.1×1÷0.1，÷×6按照从左到右的顺序计算；12÷（+）先算小括号里面的加法，再算括号外的除法；8-8÷9先算除法，再算减法；（+-）×30，运用乘法分配律简算；-×先算乘法，再算减法；其它题目根据运算法则直接求解．
本题考点：
整数、分数、小数、百分数四则混合运算；运算定律与简便运算．
考点点评：
本题考查了简单的计算，认真分析式中数据，根据运算法则和运算定律快速准确得出答案．
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