1 2 3 6 11 204=20-8-18-5-5 19-9-24 6-15-21-18

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找规律:最上一列是3,9,6,4,5.第二列是18,47,31,--,--第三列是6,25,17,15,--
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第二列是18,47,31,20,2418=3*5+347=9*5+231=6*5+120=4*5+024=5*5-1
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扫描下载二维码(1)66+8=(2)47-8=(3)25×4=(4)56÷4=(5)3.07÷3=(6)471-299=(7)600÷5=(8)1.06×8=(9)6.6+4=(10)1-0.05=(11)3.8+6.2=(12)3.8÷0.19=(13)0.1+0.1÷0.1(14)24×0.5=(15)1.8÷0.2=(16)1÷0.25=(17)8-0.8=(18)1.5×0.6=(19)1.5 题目和参考答案——精英家教网——
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(1)66+8=(2)47-8=(3)25×4=(4)56÷4=(5)3.07÷3=(6)471-299=(7)600÷5=(8)1.06×8=(9)6.6+4=(10)1-0.05=(11)3.8+6.2=(12)3.8÷0.19=(13)0.1+0.1÷0.1(14)24×0.5=(15)1.8÷0.2=(16)1÷0.25=(17)8-0.8=(18)1.5×0.6=(19)1.5÷0.3=(20)×4=(21)×=(22)12÷=(23)-=(24)1-=(25)+=(26)×=(27)+=(28)-=(29)÷=(30)+=
解:(1)66+8=74,(2)47-8=39,(3)25×4=100,(4)56÷4=14,(5)3.07÷3=,(6)471-299=172,(7)600÷5=120,(8)1.06×8=8.48,(9)6.6+4=10.6,(10)1-0.05=0.95,(11)3.8+6.2=10,(12)3.8÷0.19=20,(13)0.1+0.1÷0.1=1.1,(14)24×0.5=12,(15)1.8÷0.2=9,(16)1÷0.25=4,(17)8-0.8=7.2,(18)1.5×0.6=0.9,(19)1.5÷0.3=5,(20)×4=,(21)×=,(22)12÷=28,(23)-=,(24)1-=,(25)+=1,(26)×=,(27)+=,(28)-=,(29)÷=,(30)+=.分析:本题运用运算法则直接求解,整数加减法的题目要注意进位和退位;小数的计算要注意小数点的位置;分数的运算要注意把结果化成最简分数.点评:本题考查了基本的运算,要注意在平时多积累经验,逐步提高运算的速度和准确性.
科目:小学数学
(2012?北京)
(1)66+8=
(2)47-8=
(3)25×4=
(4)56÷4=
(5)3.07÷3=
(6)471-299=
(7)600÷5=
(8)1.06×8=
(9)6.6+4=
(10)1-0.05=
(11)3.8+6.2=
(12)3.8÷0.19=
(13)0.1+0.1÷0.1
(14)24×0.5=
(15)1.8÷0.2=
(16)1÷0.25=
(17)8-0.8=
(18)1.5×0.6=
(19)1.5÷0.3=
(20)×4=
(22)12÷=
科目:小学数学
(2011?灵宝市模拟)
直接写出得数.1-0.27=
99×66+66=
8×98×125=
科目:小学数学
(2013?甘州区模拟)直接写出得数.
3.6÷0.06=
99×66+66=
0.13++0.87=
科目:小学数学
在○里填上“>”、“<”或“=”.&&2.36+7.59○2.63+7.95&&&&6.92+3.66○12-2.5&&&&&&9.6+0.04○10-0.36&&&&&&&26.1-15.8-6.2○26.1-(15.8-6.2)
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有许多等式:1+2+3+4=5+6-17+8+9+10+11+12=13+14+15+16-117+18+19+20+21+22+23+24=25+26+27+28+29+30-1…第10
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有许多等式:1+2+3+4=5+6-17+8+9+10+11+12=13+14+15+16-117+18+19+20+21+22+23+24=25+26+27+28+29+30-1…第10个等式的左右两边结果都是______.
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(1R,3R,4S,7R,9S,11E,15S,17E,19S,20R,21S,23R,24S,25R,29S,30R)-15-[(E,1R,2S,5R,6S,7S,8R)-8-[(2R,4S,5S,6S)-4-amino-5-hydroxy-4,6-dimethyl-tetrahydropyran-2-yl]oxy-5-ethyl-2,6-dihydroxy-1,7-dimethyl-undec-3-enyl]-3-[(2R,3R,4S,5R,6R)-4-[(2S,4R,5S,6R)-4-amino-5-hydroxy-6-methyl-tetrahydropyran-2-yl]oxy-5-hydroxy-6-methyl-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxy-tetrahydropyran-2-yl]oxy-12-ethyl-1,7,9,19,23,25,29,30-octahydroxy-4,18,20,24-tetramethyl-21-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxy-14,31-dioxabicyclo[25.3.1]hentriaconta-11,17-dien-13-one []
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(1R,3R,4S,7R,9S,11E,15S,17E,19S,20R,21S,23R,24S,25R,29S,30R)-15-[(E,1R,2S,5R,6S,7S,8R)-8-[(2R,4S,5S,6S)-4-amino-5-hydroxy-4,6-dimethyl-tetrahydropyran-2-yl]oxy-5-ethyl-2,6-dihydroxy-1,7-dimethyl-undec-3-enyl]-3-[(2R,3R,4S,5R,6R)-4-[(2S,4R,5S,6R)-4-amino-5-hydroxy-6-methyl-tetrahydropyran-2-yl]oxy-5-hydroxy-6-methyl-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxy-tetrahydropyran-2-yl]oxy-12-ethyl-1,7,9,19,23,25,29,30-octahydroxy-4,18,20,24-tetramethyl-21-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxy-14,31-dioxabicyclo[25.3.1]hentriaconta-11,17-dien-13-one.
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Identification
(1R,3R,4S,7R,9S,11E,15S,17E,19S,20R,21S,23R,24S,25R,29S,30R)-15-[(E,1R,2S,5R,6S,7S,8R)-8-[(2R,4S,5S,6S)-4-amino-5-hydroxy-4,6-dimethyl-tetrahydropyran-2-yl]oxy-5-ethyl-2,6-dihydroxy-1,7-dimethyl-undec-3-enyl]-3-[(2R,3R,4S,5R,6R)-4-[(2S,4R,5S,6R)-4-amino-5-hydroxy-6-methyl-tetrahydropyran-2-yl]oxy-5-hydroxy-6-methyl-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-methyl-tetrahydropyran-2-yl]oxy-tetrahydropyran-2-yl]oxy-12-ethyl-1,7,9,19,23,25,29,30-octahydroxy-4,18,20,24-tetramethyl-21-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxy-14,31-dioxabicyclo[25.3.1]hentriaconta-11,17-dien-13-one
Aculeximycin
Molecular Formula
C81H144N2O33
CAS Registry Number
CCCC(C(C)C(C(CC)C=CC(C(C)C1CC=C(C(C(C(CC(C(C(CC2CC(C(C(O2)(CC(C(CCC(CC(CC=C(C(=O)O1)CC)O)O)C)OC3C(C(C(C(O3)C)O)OC4CC(C(C(O4)C)O)N)OC5C(C(C(C(O5)C)O)O)O)O)O)O)O)C)O)OC6C(C(C(C(O6)CO)O)O)O)C)O)C)O)O)OC7CC(C(C(O7)C)O)(C)N
1S/C81H144N2O33/c1-15-18-55(109-61-33-80(14,83)74(101)44(13)106-61)39(8)63(92)45(16-2)22-25-51(87)38(7)56-26-20-36(5)62(91)40(9)57(111-78-71(100)69(98)67(96)59(34-84)113-78)31-53(89)37(6)52(88)28-49-29-54(90)75(102)81(104,116-49)32-58(35(4)19-23-47(85)27-48(86)24-21-46(17-3)76(103)110-56)112-79-73(115-77-70(99)68(97)65(94)42(11)107-77)72(66(95)43(12)108-79)114-60-30-50(82)64(93)41(10)105-60/h20-22,25,35,37-45,47-75,77-79,84-102,104H,15-19,23-24,26-34,82-83H2,1-14H3/b25-22+,36-20+,46-21+/t35-,37-,38+,39+,40-,41+,42+,43+,44-,45+,47+,48-,49?,50+,51-,52+,53+,54-,55+,56-,57-,58+,59+,60-,61-,62+,63+,64+,65+,66+,67+,68-,69-,70+,71-,72-,73+,74+,75+,77-,78+,79-,80-,81+/m0/s1
VJKZKLDZOAFAEE-JNNTXWNCSA-N
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