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1、 1小数化分数分数基础000000.57 =.69 =.78 =.1=0.8 =0.62 =0.55 =0.66 =0.64 =0.75 =0.04 =0.83 =0.09 =0.92 =0.38 =0.89 =.39 =.54 =五年级计算小超市(11 月) 2小数化分数分数基础0.29 =0.01=0.48 =0.88 =0.98 =0.58 =0.26 =0.91=0.37 =0.06 =0.59 =0.44 =0.08 =0.79 =0.33 =0.25 =0.22 =0.15 =五年级计算小超市(11 月) 3分数化小数分数基础12534=_= _= _= _= _= _= _= _
2、10123845=_13514=_203581120= _= _= _101237= _= _2510010133792010010五年级计算小超市(11 月) 43分数化小数分数基础1713503=_= _= _= _= _= _= _= _= _20100223507251001937= _= _= _= _2050253933509=_110020113800202517979=_5010025五年级计算小超市(11 月) 5分小互化分数基础0.28 =0.24 =0.21=71943=_= _= _20501000.46 =0.86 =0.14 =124373=_= _= _25501
3、000.96 =0.97 =0.87 =173317=_= _= _100100025五年级计算小超市(11 月) 6同分母加法分数64375759+= _+= _= _= _= _= _= _+= _= _= _111111 116189793535= _+131325238181757+= _= _527175747710+= _11 115156565747+= _= _+= _161671573771+= _121218 18五年级计算小超市(11 月) 7同分母减法分数6747742919-= _-= _= _= _= _-= _= _= _11 115919546757= _-11
4、 113525935747= _-11 11758919105-= _= _= _-= _= _= _121211 111165864113-= _-1511 1120 20118711795-= _-11820 2014 14五年级计算小超市(11 月) 8异分母加法分数1211121814279+= _+= _+= _1435171141= _= _= _= _= _+= _= _= _= _= _10168391134473+= _162814815571251+= _1512411143423123+= _165712753413+= _+= _18156五年级计算小超市(11 月)
5、98异分母减法分数1418251315-= _= _= _-= _-= _1010783413181= _= _= _-= _993127341213104-= _20595353235-= _= _= _-= _1061637531310311 14-= _-= _4410 15341834316-= _-= _10510五年级计算小超市(11 月) 10真分数加减法分数2989173738+= _+= _+= _= _= _= _= _13 13114117181-= _= _= _= _-= _= _= _= _= _-51518 1813 131389172034734+-+-+163
6、41811 17912-10 2016341694714+10 15207154941-= _-= _1061052五年级计算小超市(11 月) 1110带分数加法分数57116715+ 9 = _67766+10 = _1136+ 2 = _187111812171210+15 = _+= _+ 9 = _7713 1355912837272+ 9 = _13+15 = _20+= _131111164+ 5 = _1120327112+ 4= _841+ 4 = _11 1162058315+ 5 = _164731+ 2 = _11+ 2 = _1116739+ 2 = _1053233
7、0+ 417 = _612 + 2 = _108830五年级计算小超市(11 月) 12带分数减法分数49253715-1 = _12 - 2 = _6- 3 = _12977121454161779812 -12 = _13 135-3 = _15-= _120 20585- 4 = _76157127- 2 = _1199-= _81116 16217- 2 = _1871320 - 4 = _16 161158- 583= _18165-10 = _3627115312 - 8 = _21 - = _677997771115 -14 = _12 1227- 3 = _1011 - 3 =
8、 _1099五年级计算小超市(11 月) 13带分数加法分数73879111952+= _10+= _6+ 2 = _16181557932517+ 3 = _1868457+ 4 = _1 + 2 = _714315111+ 4 = _17156+15 20= _77+= _1553371715110+ 4 = _+ 7 = _+= _156201561094111613144+ 6 = _+10 = _1 + 4 = _205251521 + 2 = _728+45= _21 + 2 = _135120515166五年级计算小超市(11 月) 14带分数减法分数136387974167-=
9、 _10-= _93- 2 = _1181557939247- 2 = _1810 - 6 = _14- 2 = _157521 - 4 = _4185-7= _1019 - 5 = _5115512 202261111111955- 4 = _11 - 7 = _1-= _106121515 10121320134134-= _5-= _8 - 4 = _102559333212- 7 = _1023 - 20 = _11 - 8 = _616553五年级计算小超市(11 月) 15带分数加减法分数551113 +1233+1 7 = _427785+ 6 = _12= _812202011
10、 1177- 2 = _151111 - 67118= _20 -10 = _1520201313793+ 3 = _1827517745+ 5 = _149+ 4= _152081- 4 = _57111- 2= _21 -1 = _155122012 153984135+ 2 = _+ 5 = _3+10 = _10101551667115932- 4 = _21 - 7 = _13 - 6 = _121261053五年级计算小超市(11 月) 16加减混合分数569127131011352557-+= _+-= _+-= _11117422522711181-+= _+-= _+-= _
11、= _= _12937879583581191115145+-= _-+= _+1712 12 116775371267114+-= _+-= _+2012914 105218357249133+= _-+= _-+= _1511 151255五年级计算小超市(11 月) 17加减混合分数235912656710 102-+= _+-= _-+= _11 1111 11 1371223138923449-= _+-+-+= _= _= _+-= _1051115127341312175211+= _+-= _= _= _12163121412141258235+-= _-21111997145
12、8255131934+-= _= _-+10458五年级计算小超市(11 月) 18加减混合分数923531312 - 4 + 55 = _542+ 3 -1 = _12 + 412+= _20541487811811129587357+ 3 - 4 = _4+ 5 + 2 = _18 173+ 5 + 6 = _18 10 1813125731192+ 4 + 2 = _1491- 2 1 + 31 = _1210- 5 + 2 = _46579125173561516 + 7 - 2 = _20315+ 6- 37= _5+ 7 - 3 = _1188685五年级计算小超市(11 月) 1
13、9加减混合分数14124124312453+ 2 - 3 = _11345+ 3 + = _9- 5 + 3 = _2156511 11374181101136+ 313 -15= _+ 9 - 3 = _13 106- 3 + 2 = _111010471735- 2 + 6 = _123331+ 7 - 4 = _84- 2 + 7 = _10547773510143-1 + 8 = _10458- 2 + 7 = _12 165729-195= _1511 11 + 37五年级计算小超市(11 月) 20加减混合分数13747351351317+= _-+= _+-= _14179121
14、6515541351+= _+-= _+= _19312 15720414211911171+-= _+-= _+-= _51215 10 208871511111223+ 5 - 2 = _12 - 6 - 3 = _2+ 3 + 5 = _12143371211 113五年级计算小超市(11 月) 21分数乘法分数51111 = _172= _13 = _1261459112 = _12= _17 = _1116171711= _15= _1614= _= _225056174784722= _= _= _20= _4233023719= _9 = _12349091320 = _16=
15、_22626五年级计算小超市(11 月) 22分数乘法分数1311201113 = _5 = _ 2 = _ 6 = _5 = _5 3 = _233 = _104310171417116 = _8 = _11= _8 = _14119152 9 = _142467152245126 = _301521112 219 = _12 18 = _2534022920113 = _1919= _5 2 = _57050五年级计算小超市(11 月) 23分数乘法分数1912713111312= _= _= _= _= _= _= _= _159116161= _23941 87421371148581
16、925= _213493213272= _= _= _= _246928 3924771142152417= _= _422 4517 284553793= _= _35639 1035五年级计算小超市(11 月) 24分数乘法分数531611 = _6711= _= _1 = _141141441321 21 = _213 = _1381631051545111 1 = _= _ 2 = _2315181012 111131 = _471 5 = _1 1 = _124512 11293411231 1 = _1 2 = _1 1 = _129510 39146111 1 = _71 = _
17、152 2 = _1022712 11五年级计算小超市(11 月) 25分数乘法分数3117 = _1417= _11 = _12471315 = _3 15 = _12 2 = _2534191713121312= _= _= _41232135112= _= _= _16 1525 2626 1174111 = _7911= _1 = _1511741411 2 = _5271 1 = _31 1 = _1429510 34五年级计算小超市(11 月) 26分数除法分数817358 = _ 5 = _8 = _1574952 = _ 5 = _10 = _181957141567 = _
18、7 = _9 = _74128= _5 = _9 = _57534512 = _15 = _10 = _89961167= _11 = _9 = _11715五年级计算小超市(11 月) 27分数除法分数151713634= _3 = _6 = _252191711= _4 = _3 = _642151519= _7 = _4 = _22311 6 = _8 = _15 = _21510 = _111112 = _4111113 2 = _6 2 = _311112210131218 = _3 = _1311五年级计算小超市(11 月) 28分数除法分数511147141645= _= _=
19、_= _= _= _= _1424 17671421611= _=_151722 1248331612= _= _1301716 111551411= _= _11124182111111799= _= _146217 1629411317 17= _= _= _715 1523 22五年级计算小超市(11 月) 29带分数加法分数17311153131781= _1 = _ 2 = _25148916711 = _191 1 = _1119 = _3726 131020891415911 210 = _13111672= _ 2 = _1337341 6 = _31 7 = _2 3 = _
20、1122713 1110 151123 6 = _121 2 = _456 6 = _11469311622353 4 = _1 2 = _ 2 = _23776五年级计算小超市(11 月) 30分数除法分数51213255 = _ 2 = _ 9 = _841212 = _12 7 = _4 2 = _523153522 6 = _310 = _212 = _11482211= _= _= _111313 11166453581273= _ 7 = _1 = _38721947571 7 = _173 2 = _12 7= _712 121020五年级计算小超市(11 月) 参考答案练习 1:0.50.3750.60.80.050.250.550.757453150112033501625310000.30.6250.230.376983.04100100935900.650.910023251911039100504练习 4:257089110025000.85.08.950.260.460.060.660.150.970.030.070.280.450.320.36练习 2:0.39.11.340291350911003710032100125791003310010100122522