2017精编小学四年级数学上册口算题卡336
四年级数学上册口算题卡
分数四年级数学上册口算题卡200×30＝42×4＝63×7＝230×20＝130×3＝60×50＝36×20＝490÷70＝150×3＝260×2＝75×26＝21×40＝35×20＝15×80＝300×6＝15×8＝23×30＝51×3＝250×50＝210÷3＝1分数四年级数学上册口算题卡72÷24＝3200×2＝24×20＝14×5＝28×3＝56×13＝650÷5＝900÷6＝10×47＝91÷13＝450÷5＝12×20＝18×2＝84÷3＝1900×5＝720÷4＝50×70＝480÷8＝26×30＝9×12＝2分数四年级数学上册口算题卡80×5＝240×80＝10×5＝120×20＝270×90＝50×10＝36×40＝50×50＝280÷7＝60×60＝18×4＝70－37＝4×250＝2×34＝160×2＝480÷2＝50×60＝48÷4＝76－19＝18×32＝3分数四年级数学上册口算题卡3200×2＝24×20＝70－14＝28×3＝6×13＝650÷5＝900÷6＝10×47＝91－13＝450÷5＝12×20＝18×2＝84÷3＝1900×5＝720÷4＝50×7＝480÷8＝26×30＝90÷3＝18×4＝4分数四年级数学上册口算题卡74+37＝210÷3＝36×20＝4×250＝120÷2＝160×2＝480÷2＝50×60＝48÷4＝76-19＝110×8＝250÷5＝130×5＝400÷8＝420÷3＝90－15＝312－239= 80×20=3×24＝92÷46＝5分数四年级数学上册口算题卡810÷9＝25×4＝34×2＝95÷5= 200×30＝42×4＝63×7＝230×20＝130×3＝60×50＝150÷3＝15×5＝490÷7＝21×3＝260×2＝75－26＝21×40＝35×20＝15×80＝300×6＝6分数四年级数学上册口算题卡94-6.73=8.95-0.73=3.61-0.30=7.78-5.15=4.68+7.10= 9.63+6.28=7.71-2.69= 9.91-8.74=6.07-1.69=5.00+6.13=8.24-7.63= 5.21+5.49=9.21-8.20= 6.88-0.49=8.06-6.96=2.76-1.02=3.50-2.54= 0.66+9.27=8.99-8.84= 3.18-2.65=7分数四年级数学上册口算题卡6.39+9.31=4.83-1.34=5.75-1.24=6.77-4.79=0.94+3.40= 3.54+7.84=9.45-3.01=0.09+0.87=3.08-0.91= 5.43+4.85=500×5= 16×3=34×3=17×5=19×3= 22×3=25×6= 40×4=40×4=16×8=8分数四年级数学上册口算题卡130×2= 270×3= 28×3= 35×2= 15×6=24÷8=12×9= 26×3= 16×8= 80×8= 28×3=38×2=24×4= 16×4= 22×3= 81÷9= 40×4=48×2= 81÷9= 800×7=9分数四年级数学上册口算题卡44×2= 16×6=12×6= 75×2=500×5=270×3=13×6= 14×3=45×3= 24÷3=17×5=90×5=31×4= 25×6=15×3= 25×4=68×2=81×3=4×32= 29×3=10分数四年级数学上册口算题卡65×2=96×4=28×5= 23×6=72×10= 54÷3=90÷6=50÷2=48÷6= 840÷7=600÷5= 360÷3=4500÷5= 7200÷6= 96+14= 85+17=12×8= 50×7=700+350=600÷2=11分数四年级数学上册口算题卡5×36= 64×16=920×3= 9000÷6=5100-170=230×5= 420×6= 150×7=38×3= 72×4=95×5=560×2=810×6= 4×630=8×250= 580÷2=910÷7=45÷3=63÷3= 78÷6=12分数四年级数学上册口算题卡640÷8=15×5=23×3=12×2=480÷8= 16×5=27×3= 90-15=48÷4=640-16=39÷3= 24×2=32×3= 48+16=12×8=27×3=56+14= 56÷8=14×2= 83－45=13分数四年级数学上册口算题卡560÷8=96+24=40÷20= 40×30= 37＋26= 76－39=76÷4=605＋59=3×23= 12×8=27＋32= 48＋27= 45×2=73＋15=12×6= 2×36=68×4= 2720＋270= 4×25=600÷4=14分数四年级数学上册口算题卡5×128= 310－70=4×14= 470＋180=1000÷25=76÷4=680＋270= 980-14=42÷3= 6×1300=1300×5=20×48=930－660= 530＋280=92÷4= 840÷21=40×5=80÷5=190÷2= 2×16=15分数四年级数学上册口算题卡87÷3= 3×330=3×1400=70-14=60-12= 96÷8=140×3= 88÷4=960÷8=750－290=5×490= 760×2=75÷5= 37×2=650-13= 8600－4200=. .240×4= 640÷8=15×10= 12×11=16分数四年级数学上册口算题卡280×3= 30×2=50×11= 250×6= 7200+900= 410-201= 200×30= 42×4=50÷10=360÷4=500÷5=280÷7=34×2= 15×5=490÷7=21×3=15×6= 120÷60=25×4= 482÷2=17分数四年级数学上册口算题卡98×28= 95×25=94×34= 47×57=46×76= 93×35=92×62= 88×49=87×38= 84×44=27×57= 26×76=83×23= 82×52=79×19= 36×76=78×28= 77×57=76×46= 75×35=18分数四年级数学上册口算题卡74×64= 73×23=72×27= 69×29=. .68×48= 67×57= 66×26= 62×42= 59×59= 98×75= 98×24= 98×33= 58×48= 57×27= 56×36= 55×25= 54×34= 53×23= 52×25= 49×29=19分数四年级数学上册口算题卡48×38= 45×25=44×24= 43×23=42×52= 39×29=97×63= 99×74=38×58= 37×67=99×46= 99×35=35×45= 34×24=33×74= 32×62=29×19= 99×19=92×59= 92×28=20分数四年级数学上册口算题卡88×37= 88×24=87×65= 87×44=28×28= 25×35=24×34= 24×43=23×95= 24×95=24×52= 93×29=99×18= 99×27=89×48= 89×26=83×38= 99×13=99×32= 98×29=. .21分数四年级数学上册口算题卡 98×27= 98×26=86×34= 98×32=97×29= 97×28=82×46= 82×28=97×46= 97×35=97×44= 78×34=97×32= 96×49=98×28= 96×27=96×45= 96×34=96×33= 96×22=22分数四年级数学上册口算题卡 49×95= 28×95=37×95= 36×95=44×95= 94×29=94×28= 57×94=94×37= 56×94=76×27= 76×25=35×94= 23×94=94×32= 78×46=93×48= 93×27=93×36= 93×25=23分数四年级数学上册口算题卡 93×44= 93×32=92×23= 92×54=92×45= 92×26=59×28= 47×59=92×17= 89×29=. . 89×27= 56×38=59×12= 89×24=89×35= 89×23=89×22= 88×38=88×26= 88×35=24。
四年级(上)口卡
288÷72=
159÷53=
180÷30=
294÷42=
322÷46=
464÷58=
648÷81=
552÷69=
190÷38=
192÷48=
228÷38=
960÷6÷4=
960÷6÷8=
一瓶洗洁精有400〔 〕
一瓶酱油约1000〔 〕
大卡车的油箱能容汽油50〔 〕
一袋酸奶约215〔 〕
285÷40=
410÷50=
354÷50=
282÷70=
324÷80=
452÷90=
256÷50=
244÷30=
245÷60=
533÷80=
566÷80=
547÷90=
454÷50=
283÷70=
322÷80=
245÷30=
213÷70=
412÷50=
234÷30=
331÷40=
182÷30=
397÷80=
166÷30=
750÷25÷3=
280÷7÷5=
8L=〔 〕mL
3升=〔 〕毫升
6000毫升=〔 〕升
4升=〔 〕毫升
四年级〔上〕数学口算题卡
:日期:时间:正确:题 错误:题
440÷60=
372÷70=
156÷40=
414÷80=
158÷40=
472÷80=
292÷40=
252÷80=
523÷90=
576÷80=
483÷30=
287÷70=
304÷40=
158÷20=
372÷30=
392÷80=
384÷20=
468÷90=
2017精编小学四年级数学上册口算题卡300
600×60＝20÷10＝253877593读作:810÷90＝77－32＝14÷2×4＝401×42≈40÷20＝5400÷60＝100－87＝90÷30＝4×35÷5＝208÷30≈20÷20＝7×28÷7＝300－81＝76×30＝16÷2×5＝122÷60≈59－19＝28÷7×4＝199×89≈19×30＝3×54÷9＝100÷50＝80－30＝72÷9×6＝270÷90＝65－29＝4×10÷2＝120÷30＝60÷20＝24÷6×6＝540÷60＝53－25＝6×14÷2＝900×40＝69－22＝5×56÷8＝560÷80＝15×10＝720439965读作:2000÷2＝15×90＝300÷10＝5000÷5＝27×80＝16÷8×5＝598×78≈50－23＝835193633354≈( )亿5000÷5＝66×30＝8100÷90＝1800÷2＝23×10＝487047558578≈( )亿800×70＝54＋24＝42÷7×4＝400×70＝61×20＝1200÷30＝138÷20≈20÷20＝9×45÷9＝500－96＝50÷10＝16÷4×3＝500÷50＝63－24＝3×63÷9＝561÷70≈84×90＝8×6÷6＝301×62≈44×90＝20÷4×6＝3500÷5＝72×30＝2700÷90＝500×30＝80÷40＝50020318954≈( )亿400×80＝25×60＝5600÷70＝100÷20＝80×70＝3×24÷8＝900×30＝36×90＝817619634读作:239÷30≈13×90＝7×30÷6＝3600÷4＝28×40＝7×49÷7＝300－11＝18×90＝815459267034≈( )亿100÷10＝25×90＝63÷7×7＝320÷40＝75－38＝6×9÷3＝900×20＝40÷20＝27÷3×3＝500－34＝17×90＝700÷70＝602×68≈27×90＝4×3÷3＝700－35＝20÷20＝4×6÷3＝700×60＝98×50＝12÷3×5＝298×78≈96×50＝90698338≈( )万2700÷3＝24×80＝34628289≈( )万300×20＝50÷10＝457056864801≈( )亿400×60＝80÷40＝2500÷50＝500×50＝15×20＝8×42÷6＝1000÷5＝14×60＝2×9÷3＝402×69≈29×40＝9×18÷6＝200×20＝30÷30＝8100÷90＝490÷70＝53＋46＝3200÷80＝200×90＝41×30＝6×56÷8＝138÷70≈11×30＝9×64÷8＝360÷40＝18×20＝84682256≈( )万1400÷7＝80÷40＝12÷6×7＝8100÷9＝23×50＝32÷8×3＝602×41≈561÷7≈500÷10＝600－62＝40÷40＝2×30÷5＝1200÷2＝32×90＝813968343读作:9000÷9＝24×80＝314924859206≈( )亿1800÷2＝22×50＝21786506≈( )万300×30＝80÷40＝73130790≈( )万7200÷8＝33×10＝5400÷90＝400－82＝699÷7≈792281116读作:300－38＝20×10＝2800÷40＝599×21≈16×30＝59522082683≈( )亿400×80＝32×10＝3500÷70＝101÷50≈65－36＝100÷10＝500－71＝352÷5≈5×6÷6＝700－29＝44×70＝5×8÷8＝800×50＝20÷20＝4800÷60＝498×91≈51＋16＝12÷4×6＝349÷50≈61－29＝97812397≈( )万270÷30＝10÷10＝3600÷60＝150÷30＝64×90＝12÷3×5＝900－53＝66－23＝16÷4×9＝180÷20＝93－16＝21÷7×2＝450÷50＝18×80＝42÷6×2＝400÷40＝77×60＝113764925读作:600－10＝20÷20＝2000÷50＝4200÷7＝99－22＝35÷7×4＝698×41≈98＋37＝2×56÷7＝700×90＝31×10＝388338917782≈( )亿3000÷3＝72×30＝2×32÷4＝400－72＝96－32＝12÷6×4＝100×60＝80÷40＝9×6÷3＝160÷40＝40÷40＝7×16÷4＝900－96＝30×10＝56÷7×4＝399×28≈12×10＝15÷5×6＝3000÷6＝38×30＝6300÷70＝300－53＝39×50＝20÷4×6＝500×70＝632÷9≈66107530≈( )万302×72≈59×40＝2×27÷3＝700－77＝93×70＝4×8÷2＝100×50＝75×80＝6×25÷5＝180÷20＝23×60＝67527638≈( )万600×30＝24×70＝4÷2×6＝1800÷3＝92－37＝683921572322≈( )亿400×40＝22×70＝15÷5×3＝600－16＝80÷40＝27÷3×3＝100÷10＝53×70＝10÷5×7＝1200÷2＝30×10＝3×4÷2＝300×70＝58－27＝1200÷30＝400－98＝58＋17＝1600÷80＝3200÷4＝40÷40＝1×5÷5＝599×62≈75＋49＝5×18÷3＝100－16＝30÷30＝17073391≈( )万2000÷5＝39×50＝42257612≈( )万800×50＝90÷30＝16÷4×2＝800－13＝22×30＝746957792读作:500－90＝75×10＝3×18÷9＝240÷60＝60÷30＝1×10÷5＝200－67＝76＋23＝1×72÷9＝699×48≈95－11＝8×4÷2＝500－50＝18×10＝3000÷50＝400×70＝71×30＝2×18÷6＝702×32≈80÷20＝40÷8×8＝450÷90＝402÷5≈727748170读作:279÷40≈19×40＝700÷70＝240÷40＝40÷10＝54÷9×2＝600×60＝23×90＝2×21÷7＝2700÷3＝18×20＝7×72÷9＝600×10＝97×90＝4×24÷6＝450÷50＝11×90＝12÷6×2＝400－23＝11×10＝15÷3×7＝100÷10＝96＋10＝9×4÷2＝898×69≈26×80＝24÷8×7＝900－28＝42×10＝1500÷30＝280÷70＝56×70＝28÷7×5＝600×50＝99－48＝1400÷20＝698×29≈34×40＝70256121≈( )万320÷80＝25×30＝32÷8×5＝500÷50＝60÷30＝891845715081≈( )亿400×30＝19×10＝6×42÷6＝200×80＝23×20＝4×8÷4＝400×90＝92＋32＝100÷10＝502×59≈62－50＝83378277≈( )万420÷70＝60÷30＝800÷80＝500－21＝20×80＝949291417718≈( )亿500－91＝18×90＝9×45÷5＝900－78＝40÷40＝6×72÷8＝422÷70≈97×60＝45÷9×5＝300－57＝80÷40＝3×24÷4＝502×39≈70÷10＝27÷3×9＝4800÷6＝60＋44＝5600÷70＝2800÷4＝98＋25＝21÷3×3＝200－59＝22×40＝6÷2×6＝1200÷4＝91×10＝2800÷40＝100÷10＝59×40＝1200÷20＝3000÷5＝28×90＝913081054494≈( )亿600×60＝82－12＝81÷9×8＝700－74＝13×60＝27÷9×4＝350÷50＝85－28＝1×12÷3＝900－31＝182÷3≈6×4÷4＝500－46＝69＋19＝2700÷30＝2400÷4＝34×90＝34722037≈( )万2000÷2＝80－15＝2×14÷7＝560÷80＝90÷30＝2100÷30＝701×69≈30÷10＝6×8÷8＝490÷70＝35×30＝2×9÷3＝350÷50＝12×20＝1600÷20＝481÷80≈65×80＝18÷2×5＝600×70＝298÷3≈5×21÷7＝7200÷8＝17×50＝900÷90＝282÷70≈58＋35＝805667833998≈( )亿300÷50＝21×10＝32÷8×6＝400÷40＝66－34＝5600÷80＝300×20＝83－28＝4000÷80＝8100÷9＝60÷30＝4×9÷9＝200×20＝45×80＝32÷8×7＝200－67＝82－37＝6×35÷7＝400÷50＝67×80＝981377892读作:600×80＝40÷40＝97675642≈( )万401×21≈201÷2≈14028610≈( )万2400÷3＝98－47＝2700÷90＝1800÷3＝67×40＝95577061≈( )万4500÷9＝30×70＝200÷10＝100×70＝74＋11＝7×24÷6＝700－98＝12×20＝14÷7×4＝159÷20≈11×50＝24229859≈( )万700－72＝11×60＝1600÷20＝2400÷3＝94×40＝6×21÷3＝350÷50＝16×20＝6÷2×7＝900×50＝19×20＝2×16÷4＝200－29＝90÷30＝3600÷90＝1600÷2＝302÷3≈62945206读作: 200×60＝10÷10＝117978839读作: 160÷20＝30÷30＝4500÷90＝200×80＝41×10＝4000÷80＝100×10＝37×50＝28÷7×9＝240÷80＝87－21＝93685093≈( )万242÷40≈479÷6≈800÷40＝300×50＝20×10＝2×6÷6＝400×60＝30×60＝15÷5×4＝500－67＝50÷10＝51102456≈( )万400－46＝15×60＝79641395≈( )万3000÷6＝69×20＝85764448≈( )万800×20＝16×90＝6400÷80＝900÷90＝92－29＝6×21÷7＝200－74＝35×20＝500÷50＝202÷20≈22×40＝42÷6×3＝100－12＝12×90＝6300÷70＝1800÷2＝73－25＝398631919读作:282÷70≈99＋20＝606481815111≈( )亿2100÷3＝29×50＝400÷10＝4000÷8＝77＋46＝1600÷40＝3600÷6＝60÷20＝8×12÷6＝7000÷7＝28×60＝4200÷60＝101÷50≈60÷10＝533464748767≈( )亿1800÷2＝64＋20＝16÷8×2＝100÷10＝17×50＝23372554484≈( )亿810÷90＝73－10＝12÷6×8＝800－61＝74－24＝40÷5×3＝3600÷6＝65×40＝48÷8×4＝200－35＝29×80＝66204687565≈( )亿100÷10＝19×80＝4500÷50＝300－74＝90÷10＝7×20÷5＝7200÷9＝40÷40＝48÷6×7＝9000÷9＝642÷8≈958789466读作:400÷80＝33×20＝178921810读作:179÷30≈71×70＝45÷9×6＝180÷30＝46×50＝12÷6×5＝902×72≈30÷30＝4000÷50＝500×30＝30×70＝955802117读作:4500÷9＝60÷20＝6÷2×4＝500－19＝301÷3≈1800÷20＝100×50＝80÷40＝499301220480≈( )亿491÷70≈16×60＝24÷8×9＝400×20＝25×40＝800÷80＝500×90＝25×10＝4×72÷8＝141÷70≈90÷30＝16÷4×8＝300÷60＝50×30＝36121161≈( )万5400÷9＝11×10＝2100÷30＝6400÷8＝82＋15＝4×64÷8＝900－41＝96×20＝7×40÷5＝631÷90≈80－27＝3600÷40＝700－13＝18×80＝8×25÷5＝800×50＝92＋37＝720023835读作:100÷10＝21×70＝2×9÷9＝100×90＝60÷20＝900÷10＝100÷10＝14×40＝7×24÷6＝1000÷2＝60×60＝15÷3×9＝450÷50＝51×20＝21÷7×3＝898÷90≈122÷3≈24÷3×6＝400×90＝12×60＝12÷2×9＝180÷90＝30×50＝7×6÷6＝200－32＝51×40＝768807467读作:2400÷8＝20×40＝21÷3×9＝200－65＝20×60＝1800÷20＝600－75＝20×50＝6300÷90＝202÷20≈27×40＝12÷6×9＝100÷10＝17×20＝8×18÷9＝400÷40＝15×80＝21÷3×5＝500－27＝21×50＝40÷8×9＝161÷40≈57×70＝49÷7×9＝320÷40＝23×80＝1800÷90＝2400÷3＝34×20＝24÷3×3＝300×80＝22×30＝25÷5×2＝600－97＝84×40＝900÷30＝540÷90＝63＋29＝720022681700≈( )亿400÷50＝86＋41＝800÷10＝120÷60＝40÷10＝1600÷20＝600÷60＝90÷30＝6×20÷4＝3500÷7＝69＋12＝200÷10＝400－50＝40÷40＝64÷8×4＝3000÷6＝11×60＝1×35÷5＝4000÷5＝62×60＝5400÷60＝1200÷4＝40÷40＝85935921≈( )万900－12＝68×10＝54÷9×2＝499×38≈73×80＝9×16÷8＝9000÷9＝80÷40＝7×6÷2＝450÷90＝59＋50＝3500÷70＝900－37＝54×50＝1800÷20＝3600÷6＝40÷20＝7×24÷8＝628÷70≈451÷5≈8831613≈( )万700×10＝21×60＝35÷7×7＝2000÷4＝40÷40＝4×8÷8＝400－32＝32×80＝28÷7×9＝100－43＝49×80＝4500÷50＝448÷90≈96－15＝63÷9×5＝400×10＝11×50＝3×42÷6＝800×70＝40÷40＝7200÷80＝600×50＝25×80＝20÷4×5＝299×62≈70÷10＝5×16÷2＝301×39≈98×50＝900÷10＝900×80＝90÷30＝2700÷90＝800×20＝64＋12＝994460666读作:210÷30＝60÷20＝87471291≈( )万120÷20＝80÷40＝1×14÷7＝900－52＝18×50＝3500÷50＝250÷50＝98－48＝801748949766≈( )亿1800÷6＝90÷10＝4200÷70＝2000÷5＝80÷40＝518802126097≈( )亿280÷40＝47×10＝8×72÷9＝2400÷3＝73×40＝786001271741≈( )亿558÷80≈80＋31＝85671792≈( )万182÷20≈70÷10＝35÷7×4＝400÷50＝121÷2≈6×20÷5＝6300÷7＝73＋41＝24÷3×3＝200×20＝61－20＝1600÷80＝200×50＝14×70＝25203759≈( )万600－36＝15×40＝775802639755≈( )亿200－26＝88－46＝81÷9×8＝1800÷6＝40÷20＝95028332读作:399×22≈30×70＝81÷9×3＝800－24＝541÷9≈3×16÷4＝400－90＝77×20＝6×15÷3＝450÷50＝55－24＝400÷40＝122÷40≈40÷40＝1500÷30＝600－27＝73×30＝300÷30＝600×90＝79＋13＝505961413读作:5600÷7＝53×10＝7×12÷6＝300÷60＝28×60＝42÷6×7＝700×90＝79－10＝1000÷50＝800－47＝58×70＝15÷5×9＝601×58≈15×60＝8×32÷4＝500－40＝40×30＝602645017954≈( )亿5600÷7＝96－40＝9×8÷8＝100－94＝67＋15＝500÷10＝401×58≈20×40＝54158041≈( )万140÷20＝18×10＝968832047141≈( )亿400÷50＝76×60＝58462072≈( )万901×78≈60÷20＝5113460≈( )万2000÷2＝25×80＝3×15÷5＝700－48＝702÷7≈105336416929≈( )亿1000÷2＝18×50＝942581939读作:2100÷3＝90÷30＝800÷80＝899×21≈76＋25＝965160713809≈( )亿700×60＝89＋15＝20÷4×8＝800－27＝28×10＝4×36÷4＝7000÷7＝13×60＝63÷9×2＝100－53＝87＋24＝600÷20＝4800÷6＝89×30＝900÷90＝100÷10＝60÷30＝1×2÷2＝299÷60≈50÷10＝84209828≈( )万212÷30≈54×30＝126119102492≈( )亿700×60＝16×80＝16÷4×6＝300×80＝10÷10＝19597871≈( )万718÷80≈20÷20＝3×24÷6＝100×60＝26×40＝9633433读作:268÷30≈30×90＝6300÷70＝400－90＝68×70＝5482937≈( )万100×10＝68×50＝244758794读作:100×60＝67＋24＝456644569994≈( )亿100÷10＝78＋24＝889564739读作:1000÷2＝18×90＝6300÷90＝4500÷5＝90＋36＝45÷5×8＝800－16＝50×60＝6×18÷2＝9000÷9＝65＋39＝50627706≈( )万180÷60＝59＋47＝425427481读作:100÷10＝80×10＝20÷4×6＝140÷20＝17×20＝2×54÷9＝202×52≈11×60＝144516922630≈( )亿201÷40≈17×30＝88850242≈( )万501×61≈78×50＝45286139≈( )万2400÷3＝80－17＝24÷3×4＝1400÷2＝17×80＝16÷8×9＝640÷80＝86－41＝9×64÷8＝490÷70＝30÷10＝200÷10＝8000÷8＝20÷20＝1909395525≈( )亿600－85＝82×40＝30÷6×2＝200－20＝28×40＝2800÷40＝160÷80＝41×20＝96570583≈( )万352÷70≈80÷40＝2400÷80＝300÷30＝249÷5≈4÷2×6＝700×90＝78＋11＝994168158720≈( )亿800×30＝76×10＝2×72÷8＝540÷90＝40×50＝14÷7×4＝538÷90≈30÷30＝200749876111≈( )亿400×90＝811÷9≈1×10÷5＝421÷60≈13×20＝28÷4×7＝200－95＝20×40＝1500÷50＝600－17＝65×40＝300÷10＝1400÷2＝52×60＝4500÷90＝900×20＝59×80＝1600÷40＝300×30＝62＋13＝600141775320≈( )亿201×89≈40÷10＝2800÷70＝1500÷3＝15×10＝5×36÷4＝239÷30≈20×60＝462602319读作:600×30＝30×40＝867636709读作:600－95＝92×70＝12÷2×8＝200－56＝62－12＝24÷3×4＝200－56＝61＋15＝16÷8×8＝8100÷9＝27×60＝189071207读作:100×80＝23×90＝47404065≈( )万300×70＝80×70＝3600÷40＝600÷60＝98＋23＝986395050读作:500－51＝30×10＝71238244≈( )万400×40＝60÷30＝482434422451≈( )亿302×52≈13×10＝3600÷40＝702×79≈93×90＝811493296读作:600×80＝66×30＝7200÷90＝8100÷9＝11×90＝453629712273≈( )亿8000÷8＝30÷30＝2×20÷5＝702×81≈74＋49＝38053214≈( )万560÷80＝98×80＝314760063读作:400－57＝51＋12＝2000÷40＝7000÷7＝90÷30＝4×72÷9＝198÷50≈68×60＝21÷3×9＝500×90＝60÷10＝2400÷40＝900－77＝60÷30＝36÷6×4＝1800÷6＝20×10＝3×40÷5＝150÷50＝72＋15＝14÷7×5＝200÷20＝19×60＝4500÷90＝900×20＝20×90＝3820280≈( )万100÷50＝37×10＝2700÷30＝540÷90＝10÷10＝700÷10＝698×78≈40÷20＝18÷6×4＝212÷70≈26×60＝20÷5×4＝300×20＝629÷7≈81÷9×4＝270÷30＝84－21＝73378244≈( )万600×90＝30÷30＝20÷5×8＝200×60＝96×70＝1800÷90＝798×69≈86－30＝549458297读作:1200÷6＝60÷20＝373652925151≈( )亿500×20＝13×30＝48163212≈( )万899×88≈90÷30＝56÷8×3＝700×40＝30÷30＝8×36÷4＝4000÷4＝96×10＝3000÷60＝7000÷7＝36×50＝2400÷60＝280÷70＝56×40＝4×56÷8＝200－38＝13×70＝8×18÷2＝700×70＝86×10＝21÷7×8＝2000÷2＝79＋40＝885779160363≈( )亿1600÷8＝80÷40＝6300÷90＝360÷60＝59×40＝9353304≈( )万300×50＝25×20＝800÷80＝500－89＝65×30＝4×20÷4＝630÷90＝70－45＝5×18÷2＝800÷80＝67－45＝1×16÷8＝1200÷3＝62－11＝700÷70＝700×10＝80÷40＝12÷6×8＝600－15＝24×40＝24÷8×5＝270÷30＝12×10＝18÷3×6＝1800÷3＝11×50＝5400÷90＝100－19＝60÷30＝77182794≈( )万200－94＝28×80＝46989550≈( )万200－78＝15×50＝71618475≈( )万1000÷2＝26×70＝1×40÷8＝500×40＝241÷4≈7×72÷9＝1200÷6＝66×80＝24÷8×5＝400－49＝63－50＝2800÷40＝700×60＝30÷10＝6÷3×2＝300－36＝30÷30＝128190779307≈( )亿400×30＝181÷2≈3×36÷6＝100÷50＝80÷40＝4500÷90＝120÷60＝80÷40＝8×6÷3＝799×49≈272÷3≈4500÷90＝560÷80＝14×30＝5400÷90＝400－56＝80÷40＝27320316≈( )万4200÷7＝44×10＝570632881590≈( )亿200－45＝60÷30＝1200÷40＝700×10＝17×20＝9×56÷8＝600×50＝57－47＝2×40÷5＝6000÷6＝84×90＝20÷4×9＝500－23＝15×40＝1600÷40＝300×70＝14×20＝3×16÷8＝540÷60＝12×70＝8×24÷8＝600×50＝20÷20＝7×35÷5＝161÷40≈98－49＝9×14÷2＝800－28＝75－22＝4×54÷9＝300－96＝27×60＝9×24÷8＝120÷20＝17×30＝6×20÷5＝100－67＝89－25＝188307946403≈( )亿100×80＝22×40＝1400÷70＝559÷70≈29×40＝468922715读作:1200÷3＝15×40＝1800÷20＝3500÷5＝419÷6≈1600÷20＝599×69≈78＋28＝8×12÷3＝8000÷8＝67－28＝24÷3×2＝200－50＝58×50＝14÷7×5＝299÷60≈20÷10＝4×12÷2＝600－38＝85×40＝292921528950≈( )亿3600÷4＝16×20＝237411490读作:120÷60＝60÷10＝900÷90＝700×60＝33×40＝49÷7×4＝180÷30＝60÷30＝1400÷70＝210÷70＝60÷10＝200÷20＝400÷80＝28×60＝45÷5×8＝500－45＝30÷30＝2400÷30＝120÷20＝13×50＝3×10÷2＝2000÷4＝84＋13＝16681986≈( )万1000÷2＝50÷10＝6×12÷3＝2400÷4＝20÷10＝3×72÷9＝400×80＝80÷40＝4×18÷9＝900×90＝12×80＝8×56÷8＝501×19≈50×10＝30÷5×6＝2000÷5＝19×50＝6×24÷3＝282÷70≈211÷3≈133536756读作:1200÷3＝20÷20＝700÷70＝161÷20≈22×10＝36÷6×8＝700－64＝138÷2≈77678458≈( )万799÷80≈30×20＝2×18÷2＝210÷30＝60÷30＝228718161读作:480÷80＝29×20＝1800÷60＝200×30＝18×80＝308989315500≈( )亿1200÷2＝69＋44＝4000÷80＝500×90＝50×90＝42÷7×6＝900－16＝96×70＝3×36÷9＝2000÷2＝63×90＝282896374134≈( )亿500÷50＝13×10＝9×6÷6＝120÷20＝85＋35＝15÷5×3＝600×70＝19×50＝56÷7×4＝200×20＝86＋35＝34182644读作:1400÷7＝60÷10＝1500÷50＝902×81≈19×50＝8×63÷9＝100×50＝74×60＝304153541003≈( )亿420÷60＝80－43＝78348524≈( )万1200÷2＝69×90＝5×16÷4＝1500÷3＝61＋25＝1600÷40＝200－14＝60÷30＝999315812读作: 280÷40＝27×20＝100÷10＝8000÷8＝67×80＝1×35÷7＝200×10＝282÷7≈42÷7×7＝100×40＝628÷9≈1838390≈( )万300×50＝80÷40＝12÷6×9＝700×20＝38×50＝2000÷50＝320÷80＝66＋36＝9×20÷5＝300－81＝81－37＝3200÷80＝100×80＝12×10＝2000÷50＝5000÷5＝47×90＝600166248读作: 800×60＝68－25＝32÷4×8＝100÷10＝50÷10＝3500÷50＝1200÷6＝74×50＝8×6÷6＝5600÷8＝20÷20＝6300÷90＝500－42＝79＋16＝4500÷50＝300－48＝86×50＝15÷5×3＝500－62＝35×90＝7×15÷3＝502×39≈84－12＝1800÷30＝600－75＝24×90＝24÷4×8＝540÷60＝14×50＝875023763802≈( )亿698×79≈67－15＝4×18÷3＝600÷60＝90÷10＝8100÷90＝100－57＝19×10＝228338552528≈( )亿500×50＝40÷20＝18÷2×7＝900×40＝70÷10＝20÷4×5＝120÷40＝90÷30＝5×10÷5＝7000÷7＝80÷20＝200÷20＝600－11＝271÷3≈8÷4×9＝198×71≈52－47＝34890423≈( )万200×20＝40÷40＝24÷3×8＝630÷90＝80÷10＝905087739076≈( )亿2400÷8＝21×60＝27414006≈( )万7000÷7＝25×40＝4800÷60＝900×20＝23×30＝2×12÷4＝201×21≈11×30＝4000÷80＝700－65＝30×10＝4500÷50＝100÷10＝13×40＝8×36÷6＝598×51≈91＋15＝2800÷40＝2400÷8＝54×80＝63÷9×6＝480÷60＝20÷20＝2000÷40＝211÷70≈87－20＝500÷50＝362÷60≈93－31＝868821017095≈( )亿801×49≈30÷30＝2×32÷4＝240÷30＝99＋18＝12÷2×8＝200÷20＝77－34＝10÷2×2＝900－21＝15×20＝1×16÷8＝300×10＝80÷20＝100÷10＝558÷70≈86－24＝4200÷60＝8100÷9＝70×50＝39965268≈( )万600－88＝85－50＝829556350读作:1200÷4＝70÷10＝10÷5×8＝3600÷6＝60÷10＝36÷4×6＝300－19＝82×50＝821005107读作:900×60＝398÷4≈45÷5×3＝3500÷7＝60÷20＝16÷8×8＝2700÷3＝28×50＝9×30÷6＝630÷90＝40÷10＝1×24÷6＝100－86＝60÷20＝1200÷60＝350÷70＝99×80＝215224269152≈( )亿2000÷4＝26×70＝2×20÷5＝9000÷9＝94×80＝923224858读作:3200÷4＝51×70＝5×8÷4＝498×51≈16×80＝400÷20＝800×60＝90÷30＝4500÷50＝3000÷6＝88×60＝4900÷70＝500×10＝19×80＝85894245≈( )万600－24＝99＋27＝46285247≈( )万1400÷7＝22×20＝150651402读作:200÷50＝70－43＝4×20÷4＝100－38＝20×70＝4200÷70＝900×90＝62×30＝9×18÷6＝1600÷8＝80÷40＝2400÷60＝198×21≈73＋38＝1500÷50＝182÷30≈40÷10＝4800÷60＝900×40＝29×40＝4×6÷2＝500×80＝98×80＝10÷2×2＝3500÷5＝89－14＝800÷10＝1200÷6＝82－48＝45678748≈( )万600×20＝76×30＝7×32÷4＝240÷40＝90÷30＝10÷5×4＝3200÷8＝16×20＝288624992读作:360÷40＝38×90＝7×18÷3＝120÷30＝139÷7≈429178376读作:100÷20＝85－21＝11467562375≈( )亿179÷90≈20×50＝44856618≈( )万4000÷4＝53×10＝338217168读作:1800÷6＝85×20＝35÷5×3＝700－72＝80÷10＝7200÷80＝362÷90≈16×80＝695733152读作:6300÷9＝13×70＝63÷9×8＝480÷60＝59×10＝24÷3×2＝240÷30＝97－35＝545297937195≈( )亿120÷20＝81＋33＝700÷10＝400×90＝80×80＝66417001≈( )万490÷70＝50－39＝46028747≈( )万8000÷8＝75－43＝71043271≈( )万798÷80≈16×10＝3000÷60＝300－24＝32×30＝9×64÷8＝199÷20≈12×30＝2×36÷9＝698×62≈50÷10＝6×4÷4＝4000÷4＝93×30＝30036111≈( )万201×28≈76－19＝2×4÷2＝200×70＝59×30＝800÷10＝400－60＝12×90＝3×30÷5＝300×40＝98＋44＝484100998800≈( )亿7200÷9＝26×20＝4200÷60＝502×41≈12×10＝8×7÷7＝148÷30≈75×40＝80890086671≈( )亿200－45＝87×60＝342842219读作:278÷70≈12×10＝5600÷80＝500－39＝58×90＝4×48÷8＝248÷50≈19×60＝4×30÷6＝8000÷8＝20×40＝35÷7×7＝299×59≈27×60＝7×48÷6＝202×82≈27×90＝800÷20＝420÷70＝57－47＝900÷10＝178÷30≈158÷8≈600÷60＝719÷80≈24×50＝616637191读作:2100÷7＝30×70＝5×5÷5＝7000÷7＝30×80＝1×54÷9＝600×40＝80÷40＝10÷2×4＝401×68≈29×20＝35÷5×3＝1600÷2＝56＋33＝4×6÷6＝3000÷5＝95－29＝36÷6×3＝300－53＝12×70＝99088493≈( )万900×70＝96＋18＝16÷4×5＝139÷20≈54×20＝27÷3×6＝239÷40≈22×40＝6×81÷9＝900－85＝91－38＝6÷3×7＝398×82≈77＋22＝900÷10＝100×80＝78＋41＝3200÷80＝100×20＝90÷30＝473202311159≈( )亿100÷10＝27×30＝5×15÷5＝200×90＝80－47＝10÷5×5＝200×20＝30×70＝700÷10＝800－99＝61×40＝3200÷80＝2400÷4＝19×40＝758017969718≈( )亿210÷70＝99×40＝18÷3×9＝702×29≈28×20＝12÷4×8＝100－99＝60÷30＝30÷6×8＝900－23＝90÷30＝1200÷40＝2400÷8＝80÷20＝576533837807≈( )亿300×80＝18×40＝48÷6×6＝4000÷5＝20÷10＝16÷2×3＝3000÷3＝40÷20＝1×6÷3＝400×60＝97×30＝69271501≈( )万400－45＝22×70＝27÷3×4＝1200÷6＝70＋32＝4200÷70＝700－98＝558÷7≈283158517633≈( )亿701×91≈80÷40＝6×9÷3＝2017新编小学四年级数学上册口算题卡班级：姓名：日期：。
四年级上册口算题(三位数乘两位数)-3000题
练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:530 × 15 = 103 × 60 = 800 × 10 = 100 × 35 = 280 × 30 = 990 × 10 = 898 × 10 = 125 × 70 = 510 × 10 = 154 × 50 = 252 × 28 = 400 × 20 = 180 × 10 = 111 × 10 = 123 × 50 = 162 × 40 = 120 × 44 = 40 × 80 = 360 × 20 = 552 × 10 = 472 × 20 = 140 × 31 = 272 × 10 = 660 × 14 = 912 × 10 = 150 × 10 = 300 × 10 = 658 × 10 = 239 × 37 = 505 × 18 = 423 × 16 = 262 × 10 = 235 × 40 = 490 × 10 = 550 × 16 = 200 × 22 = 136 × 45 = 80 × 20 = 432 × 10 = 243 × 16 = 310 × 20 = 379 × 20 =127 × 25 = 190 × 40 = 355 × 19 =540 × 10 = 160 × 30 = 408 × 10 = 100 × 80 = 953 × 10 = 210 × 44 = 500 × 10 = 102 × 40 = 165 × 32 = 688 × 11 = 911 × 10 = 576 × 10 = 304 × 25 = 160 × 50 = 114 × 73 = 515 × 10 = 470 × 10 = 578 × 10 = 541 × 10 = 170 × 28 = 954 × 10 = 728 × 10 = 335 × 10 = 650 × 10 = 184 × 26 = 630 × 15 = 315 × 30 = 200 × 50 = 331 × 10 = 199 × 26 = 420 × 15 = 100 × 20 = 129 × 50 = 218 × 10 = 335 × 12 = 410 × 20 = 280 × 12 = 600 × 10 = 120 × 53 = 215 × 23 = 200 × 20 = 140 × 13 = 270 × 30 = 580 × 10 = 500 × 20 = 100 × 70 = 930 × 10 = 175 × 46 = 160 × 60 = 330 × 24 = 150 × 56 = 900 × 10 = 565 × 10 = 100 × 90 = 265 × 10 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:720 × 10 = 246 × 36 = 390 × 13 = 223 × 40 = 199 × 26 = 103 × 90 = 156 × 60 = 235 × 40 = 290 × 14 = 280 × 30 = 160 × 23 = 80 × 20 = 424 × 15 = 290 × 17 = 140 × 24 = 820 × 10 = 250 × 20 = 310 × 28 = 335 × 12 = 162 × 40 = 336 × 10 = 312 × 31 = 148 × 20 = 175 × 46 = 10 × 50 = 129 × 54 = 595 × 12 = 184 × 26 = 359 × 25 = 198 × 13 = 990 × 10 = 331 × 10 = 953 × 10 = 410 × 17 = 400 × 10 = 285 × 20 = 100 × 84 = 140 × 60 = 400 × 20 = 150 × 40 = 155 × 60 = 262 × 10 = 160 × 60 = 134 × 40 = 140 × 31 =631 × 10 = 195 × 36 = 236 × 40 = 258 × 33 = 200 × 30 = 392 × 25 = 913 × 10 = 240 × 30 = 152 × 42 = 600 × 10 = 464 × 20 = 106 × 10 = 120 × 44 = 370 × 18 = 550 × 10 = 688 × 11 = 470 × 12 = 440 × 10 = 435 × 20 = 363 × 20 = 162 × 60 = 630 × 10 = 230 × 37 = 200 × 24 = 142 × 30 = 100 × 80 = 431 × 10 = 341 × 25 = 675 × 10 = 265 × 30 = 390 × 10 = 380 × 10 = 180 × 11 = 120 × 75 = 132 × 20 = 190 × 40 = 246 × 30 = 634 × 10 = 385 × 14 = 114 × 73 = 430 × 20 = 300 × 10 = 295 × 10 = 165 × 20 = 270 × 23 = 129 × 50 = 700 × 10 = 224 × 28 = 149 × 33 = 250 × 40 = 180 × 30 = 218 × 10 = 475 × 17 = 225 × 10 = 158 × 60 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:590 × 10 = 137 × 60 = 210 × 44 = 410 × 20 = 688 × 11 = 400 × 14 = 470 × 12 = 224 × 28 = 199 × 26 = 550 × 10 = 556 × 15 = 120 × 56 = 934 × 10 = 335 × 12 = 334 × 20 = 400 × 10 = 180 × 20 = 190 × 40 = 149 × 10 = 330 × 10 = 141 × 68 = 869 × 10 = 240 × 20 = 552 × 10 = 304 × 25 = 516 × 15 = 630 × 15 = 953 × 10 = 149 × 55 = 200 × 20 = 100 × 90 = 192 × 50 = 300 × 10 = 359 × 25 = 80 × 20 = 898 × 10 = 560 × 10 = 290 × 14 = 175 × 46 = 431 × 10 = 390 × 10 = 119 × 60 = 158 × 60 = 110 × 70 = 149 × 50 =655 × 12 = 460 × 15 = 262 × 10 = 108 × 20 = 90 × 20 = 300 × 20 = 530 × 10 = 630 × 10 = 161 × 29 = 520 × 12 = 755 × 10 = 125 × 70 = 310 × 25 = 600 × 10 = 149 × 33 = 262 × 34 = 230 × 40 = 100 × 80 = 100 × 35 = 212 × 10 = 958 × 10 = 633 × 12 = 181 × 20 = 160 × 10 = 258 × 20 = 280 × 30 = 246 × 30 = 490 × 10 = 184 × 26 = 190 × 38 = 132 × 20 = 270 × 23 = 310 × 28 = 388 × 10 = 103 × 90 = 200 × 10 = 100 × 60 = 134 × 60 = 565 × 10 = 162 × 40 = 235 × 40 = 577 × 11 = 140 × 31 = 214 × 20 = 198 × 13 = 121 × 63 = 160 × 60 = 990 × 10 = 100 × 84 = 250 × 40 = 130 × 21 = 230 × 30 = 660 × 14 = 120 × 83 = 165 × 32 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:820 × 10 = 368 × 24 = 135 × 30 = 750 × 13 = 470 × 12 = 165 × 32 = 158 × 60 = 755 × 10 = 280 × 30 = 901 × 10 = 800 × 10 = 680 × 10 = 150 × 40 = 140 × 60 = 300 × 20 = 930 × 10 = 630 × 15 = 530 × 11 = 500 × 15 = 700 × 10 = 300 × 30 = 304 × 25 = 965 × 10 = 100 × 70 = 108 × 25 = 132 × 10 = 240 × 11 = 300 × 10 = 100 × 35 = 246 × 36 = 160 × 23 = 134 × 10 = 500 × 20 = 260 × 30 = 236 × 20 = 250 × 40 = 130 × 23 = 410 × 17 = 180 × 10 = 280 × 12 = 100 × 84 = 600 × 10 = 900 × 10 = 370 × 16 = 120 × 53 =257 × 27 = 178 × 25 = 390 × 13 = 295 × 22 = 270 × 35 = 370 × 20 = 550 × 16 = 100 × 50 = 740 × 10 = 110 × 70 = 145 × 10 = 355 × 19 = 180 × 30 = 257 × 10 = 700 × 11 = 328 × 22 = 230 × 24 = 114 × 73 = 200 × 40 = 950 × 10 = 224 × 28 = 125 × 70 = 400 × 20 = 130 × 21 = 140 × 31 = 149 × 33 = 331 × 10 = 210 × 44 = 90 × 60 = 170 × 20 = 123 × 50 = 370 × 14 = 120 × 74 = 380 × 26 = 180 × 20 = 898 × 10 = 200 × 10 = 184 × 26 = 103 × 90 = 217 × 10 = 688 × 11 = 290 × 14 = 892 × 10 = 165 × 20 = 262 × 10 = 120 × 22 = 90 × 80 = 660 × 14 = 195 × 36 = 400 × 14 = 129 × 50 = 180 × 11 = 270 × 23 = 199 × 26 = 305 × 26 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:103 × 90 = 110 × 52 = 410 × 17 = 624 × 10 = 540 × 10 = 290 × 14 = 100 × 90 = 374 × 21 = 180 × 40 = 195 × 15 = 20 × 30 = 930 × 10 = 160 × 14 = 335 × 20 = 217 × 10 = 326 × 20 = 280 × 12 = 100 × 70 = 400 × 20 = 755 × 10 = 310 × 28 = 262 × 10 = 331 × 10 = 410 × 20 = 224 × 28 = 112 × 65 = 110 × 68 = 160 × 60 = 243 × 16 = 917 × 10 = 898 × 10 = 246 × 36 = 350 × 10 = 475 × 17 = 195 × 36 = 647 × 10 = 162 × 40 = 470 × 12 = 688 × 11 = 235 × 40 = 130 × 53 = 104 × 82 = 240 × 16 = 132 × 20 = 408 × 10 =160 × 23 = 120 × 55 = 700 × 10 = 198 × 34 = 740 × 12 = 160 × 30 = 900 × 10 = 140 × 31 = 104 × 40 = 390 × 10 = 199 × 26 = 355 × 19 = 230 × 34 = 100 × 20 = 410 × 12 = 90 × 40 = 500 × 20 = 270 × 31 = 190 × 10 = 338 × 25 = 600 × 10 = 390 × 13 = 100 × 80 = 197 × 40 = 928 × 10 = 631 × 10 = 310 × 22 = 469 × 16 = 129 × 50 = 252 × 30 = 130 × 70 = 184 × 26 = 130 × 21 = 630 × 15 = 240 × 30 = 115 × 50 = 550 × 10 = 466 × 10 = 380 × 10 = 630 × 10 = 336 × 10 = 198 × 13 = 260 × 20 = 431 × 10 = 343 × 23 = 180 × 10 = 633 × 12 = 182 × 45 = 300 × 20 = 300 × 10 = 652 × 15 = 149 × 33 = 214 × 30 = 492 × 18 = 472 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:468 × 20 = 200 × 40 = 103 × 90 = 660 × 14 = 140 × 51 = 125 × 70 = 240 × 26 = 493 × 12 = 140 × 65 = 624 × 15 = 180 × 10 = 100 × 84 = 180 × 11 = 184 × 26 = 130 × 21 = 431 × 10 = 210 × 44 = 50 × 10 = 953 × 10 = 20 × 10 = 320 × 26 = 199 × 26 = 120 × 53 = 630 × 10 = 470 × 12 = 755 × 10 = 239 × 32 = 270 × 23 = 631 × 10 = 782 × 10 = 175 × 46 = 688 × 11 = 160 × 23 = 120 × 44 = 363 × 21 = 500 × 20 = 200 × 20 = 134 × 40 = 120 × 80 = 280 × 12 = 200 × 27 = 110 × 70 = 232 × 10 = 180 × 20 = 130 × 20 =800 × 10 = 140 × 60 = 200 × 10 = 218 × 10 = 120 × 83 = 359 × 25 = 892 × 10 = 335 × 12 = 243 × 16 = 10 × 80 = 330 × 24 = 140 × 27 = 246 × 30 = 331 × 10 = 336 × 10 = 633 × 12 = 490 × 16 = 245 × 14 = 162 × 40 = 540 × 10 = 270 × 29 = 100 × 90 = 100 × 20 = 217 × 10 = 460 × 20 = 418 × 17 = 310 × 10 = 330 × 10 = 150 × 40 = 114 × 75 = 280 × 20 = 280 × 30 = 123 × 50 = 200 × 50 = 165 × 32 = 160 × 20 = 198 × 13 = 235 × 40 = 380 × 20 = 156 × 20 = 200 × 30 = 410 × 20 = 110 × 40 = 150 × 10 = 190 × 50 = 174 × 56 = 900 × 10 = 132 × 20 = 472 × 20 = 820 × 10 = 990 × 10 = 750 × 12 = 460 × 10 = 235 × 30 = 129 × 50 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 83 = 198 × 13 = 837 × 11 = 200 × 10 = 409 × 20 = 120 × 53 = 892 × 10 = 410 × 17 = 100 × 60 = 116 × 30 = 552 × 10 = 310 × 28 = 180 × 16 = 180 × 20 = 125 × 70 = 550 × 16 = 565 × 10 = 990 × 10 = 120 × 20 = 160 × 60 = 408 × 10 = 199 × 26 = 200 × 20 = 720 × 12 = 243 × 16 = 160 × 20 = 336 × 10 = 325 × 30 = 165 × 20 = 390 × 13 = 184 × 26 = 105 × 80 = 316 × 25 = 260 × 16 = 246 × 36 = 100 × 22 = 280 × 34 = 145 × 66 = 224 × 28 = 110 × 18 = 620 × 13 = 100 × 20 = 130 × 21 = 280 × 30 = 122 × 45 =110 × 70 = 470 × 12 = 129 × 50 = 320 × 14 = 390 × 10 = 140 × 50 = 216 × 34 = 130 × 60 = 160 × 30 = 195 × 32 = 140 × 20 = 270 × 23 = 898 × 10 = 198 × 49 = 70 × 40 = 140 × 10 = 900 × 10 = 170 × 55 = 130 × 69 = 100 × 35 = 700 × 10 = 630 × 10 = 885 × 10 = 50 × 80 = 400 × 20 = 196 × 26 = 334 × 23 = 210 × 10 = 335 × 12 = 510 × 19 = 332 × 25 = 560 × 12 = 755 × 10 = 331 × 10 = 130 × 41 = 410 × 20 = 260 × 15 = 820 × 10 = 390 × 16 = 314 × 10 = 100 × 84 = 500 × 17 = 633 × 12 = 206 × 40 = 217 × 10 = 160 × 46 = 600 × 10 = 598 × 13 = 120 × 64 = 150 × 20 = 160 × 23 = 688 × 11 = 660 × 14 = 720 × 10 = 149 × 33 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:149 × 33 = 445 × 18 = 330 × 24 = 675 × 10 = 160 × 23 = 196 × 45 = 660 × 14 = 345 × 16 = 100 × 35 = 953 × 10 = 150 × 50 = 40 × 40 = 470 × 12 = 331 × 10 = 100 × 30 = 140 × 31 = 480 × 10 = 175 × 46 = 400 × 20 = 612 × 15 = 380 × 10 = 350 × 13 = 313 × 30 = 180 × 11 = 100 × 60 = 500 × 17 = 299 × 30 = 160 × 15 = 122 × 80 = 990 × 10 = 198 × 34 = 204 × 33 = 150 × 37 = 246 × 36 = 150 × 38 = 304 × 25 = 167 × 30 = 150 × 40 = 330 × 25 = 266 × 15 = 634 × 10 = 631 × 10 = 472 × 20 = 239 × 37 = 196 × 32 =280 × 12 = 431 × 10 = 198 × 13 = 335 × 12 = 230 × 38 = 103 × 90 = 100 × 40 = 130 × 21 = 115 × 78 = 195 × 36 = 100 × 52 = 60 × 20 = 165 × 20 = 426 × 10 = 217 × 10 = 839 × 10 = 600 × 10 = 230 × 43 = 250 × 40 = 200 × 10 = 120 × 34 = 200 × 20 = 100 × 84 = 262 × 10 = 116 × 20 = 159 × 30 = 290 × 20 = 123 × 50 = 117 × 49 = 130 × 10 = 70 × 20 = 220 × 33 = 630 × 15 = 536 × 10 = 310 × 28 = 185 × 10 = 120 × 83 = 633 × 12 = 280 × 30 = 770 × 10 = 90 × 10 = 136 × 65 = 143 × 40 = 300 × 30 = 410 × 17 = 145 × 55 = 506 × 10 = 210 × 26 = 80 × 50 = 270 × 23 = 110 × 39 = 380 × 18 = 195 × 28 = 235 × 40 = 430 × 15 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:330 × 24 = 863 × 10 = 165 × 20 = 552 × 10 = 210 × 30 = 160 × 60 = 80 × 20 = 160 × 58 = 228 × 15 = 475 × 17 = 130 × 72 = 100 × 50 = 195 × 36 = 170 × 30 = 990 × 10 = 336 × 10 = 199 × 26 = 930 × 10 = 115 × 30 = 410 × 17 = 500 × 10 = 633 × 12 = 198 × 13 = 214 × 30 = 217 × 10 = 180 × 11 = 631 × 10 = 400 × 20 = 170 × 44 = 162 × 40 = 210 × 44 = 175 × 46 = 580 × 14 = 129 × 50 = 200 × 16 = 630 × 10 = 250 × 35 = 318 × 30 = 224 × 28 = 235 × 40 = 153 × 30 = 820 × 10 = 100 × 90 = 100 × 40 = 130 × 21 =198 × 34 = 160 × 23 = 180 × 10 = 700 × 10 = 246 × 36 = 110 × 65 = 220 × 43 = 630 × 15 = 152 × 30 = 500 × 20 = 335 × 12 = 120 × 83 = 270 × 15 = 487 × 20 = 390 × 13 = 100 × 20 = 898 × 10 = 100 × 84 = 344 × 10 = 182 × 45 = 244 × 10 = 120 × 44 = 225 × 14 = 717 × 10 = 250 × 20 = 800 × 10 = 550 × 16 = 123 × 50 = 410 × 20 = 140 × 60 = 270 × 23 = 250 × 40 = 270 × 20 = 280 × 20 = 472 × 20 = 158 × 17 = 145 × 46 = 550 × 10 = 170 × 10 = 892 × 10 = 264 × 35 = 932 × 10 = 688 × 11 = 796 × 10 = 400 × 14 = 200 × 10 = 307 × 24 = 280 × 12 = 320 × 20 = 154 × 49 = 138 × 12 = 150 × 43 = 200 × 30 = 431 × 10 = 132 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:550 × 10 = 190 × 50 = 688 × 11 = 50 × 40 = 410 × 11 = 800 × 10 = 110 × 28 = 500 × 10 = 110 × 10 = 345 × 22 = 239 × 11 = 180 × 36 = 125 × 70 = 400 × 10 = 930 × 10 = 410 × 20 = 246 × 30 = 224 × 28 = 383 × 25 = 900 × 10 = 470 × 12 = 40 × 60 = 199 × 26 = 200 × 20 = 120 × 44 = 408 × 10 = 170 × 26 = 158 × 60 = 135 × 56 = 240 × 30 = 100 × 40 = 168 × 45 = 180 × 10 = 400 × 14 = 162 × 40 = 560 × 15 = 898 × 10 = 953 × 10 = 500 × 20 = 540 × 10 = 312 × 25 = 239 × 37 = 114 × 10 = 100 × 10 = 175 × 46 =136 × 70 = 335 × 12 = 165 × 32 = 244 × 40 = 130 × 40 = 100 × 20 = 582 × 15 = 700 × 10 = 149 × 33 = 246 × 36 = 120 × 83 = 471 × 16 = 30 × 30 = 243 × 16 = 240 × 26 = 130 × 21 = 100 × 84 = 600 × 10 = 100 × 35 = 336 × 10 = 520 × 10 = 625 × 11 = 200 × 50 = 670 × 10 = 331 × 10 = 482 × 15 = 169 × 11 = 250 × 40 = 123 × 50 = 298 × 10 = 552 × 10 = 235 × 10 = 200 × 30 = 431 × 10 = 110 × 70 = 272 × 30 = 380 × 10 = 410 × 18 = 300 × 10 = 280 × 12 = 685 × 14 = 550 × 16 = 263 × 33 = 146 × 20 = 210 × 44 = 130 × 75 = 565 × 10 = 125 × 50 = 100 × 70 = 510 × 10 = 160 × 23 = 184 × 26 = 633 × 12 = 321 × 30 = 165 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:400 × 20 = 690 × 10 = 280 × 12 = 470 × 10 = 200 × 20 = 130 × 42 = 550 × 10 = 230 × 42 = 149 × 33 = 472 × 20 = 660 × 14 = 540 × 10 = 195 × 36 = 970 × 10 = 60 × 70 = 159 × 54 = 181 × 22 = 103 × 90 = 102 × 96 = 243 × 16 = 410 × 17 = 270 × 23 = 242 × 40 = 552 × 10 = 150 × 56 = 198 × 34 = 180 × 10 = 500 × 20 = 160 × 41 = 214 × 30 = 30 × 80 = 747 × 13 = 100 × 35 = 290 × 14 = 251 × 39 = 630 × 15 = 255 × 12 = 210 × 30 = 114 × 73 = 410 × 20 = 246 × 36 = 160 × 30 = 110 × 81 = 633 × 12 = 105 × 28 =170 × 50 = 645 × 13 = 514 × 16 = 304 × 25 = 90 × 80 = 990 × 10 = 120 × 44 = 198 × 13 = 380 × 10 = 600 × 10 = 390 × 10 = 262 × 10 = 540 × 18 = 631 × 10 = 550 × 16 = 335 × 12 = 123 × 50 = 490 × 15 = 250 × 26 = 898 × 10 = 144 × 30 = 165 × 32 = 314 × 20 = 103 × 43 = 197 × 30 = 241 × 40 = 80 × 20 = 100 × 45 = 162 × 40 = 217 × 10 = 415 × 18 = 239 × 37 = 120 × 70 = 140 × 60 = 688 × 11 = 210 × 13 = 900 × 10 = 235 × 40 = 200 × 40 = 630 × 10 = 100 × 20 = 246 × 30 = 302 × 13 = 130 × 21 = 555 × 12 = 800 × 10 = 210 × 22 = 359 × 25 = 232 × 40 = 660 × 10 = 120 × 35 = 820 × 10 = 132 × 20 = 431 × 10 = 418 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:210 × 44 = 200 × 20 = 306 × 20 = 290 × 14 = 892 × 10 = 262 × 10 = 500 × 20 = 155 × 48 = 630 × 10 = 152 × 45 = 550 × 10 = 160 × 60 = 338 × 25 = 755 × 10 = 350 × 10 = 431 × 10 = 90 × 60 = 630 × 15 = 275 × 34 = 355 × 19 = 330 × 25 = 200 × 32 = 186 × 30 = 114 × 73 = 626 × 12 = 824 × 10 = 164 × 60 = 400 × 20 = 122 × 75 = 140 × 30 = 359 × 25 = 100 × 20 = 460 × 16 = 200 × 40 = 100 × 84 = 280 × 22 = 175 × 46 = 103 × 90 = 250 × 40 = 565 × 10 = 246 × 30 = 159 × 57 = 235 × 40 = 400 × 10 = 234 × 15 =414 × 16 = 148 × 34 = 700 × 10 = 199 × 26 = 109 × 50 = 100 × 60 = 528 × 17 = 150 × 42 = 227 × 30 = 333 × 30 = 120 × 44 = 198 × 13 = 180 × 11 = 280 × 12 = 552 × 10 = 408 × 10 = 132 × 20 = 198 × 34 = 107 × 20 = 732 × 10 = 290 × 31 = 212 × 35 = 157 × 40 = 450 × 20 = 220 × 18 = 820 × 10 = 540 × 10 = 170 × 28 = 880 × 10 = 80 × 20 = 898 × 10 = 660 × 10 = 239 × 37 = 110 × 70 = 390 × 13 = 186 × 26 = 336 × 10 = 548 × 10 = 243 × 16 = 430 × 22 = 500 × 10 = 410 × 17 = 40 × 40 = 330 × 24 = 218 × 10 = 900 × 10 = 100 × 35 = 200 × 35 = 104 × 95 = 310 × 28 = 140 × 31 = 322 × 30 = 20 × 90 = 550 × 16 = 150 × 40 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 44 = 219 × 30 = 125 × 70 = 565 × 10 = 162 × 40 = 239 × 37 = 540 × 10 = 184 × 26 = 390 × 10 = 108 × 92 = 178 × 35 = 125 × 78 = 520 × 10 = 140 × 31 = 200 × 20 = 165 × 20 = 305 × 30 = 262 × 10 = 100 × 10 = 230 × 38 = 328 × 19 = 108 × 10 = 552 × 10 = 880 × 10 = 110 × 70 = 180 × 20 = 200 × 12 = 144 × 45 = 146 × 60 = 220 × 21 = 320 × 11 = 165 × 32 = 195 × 36 = 180 × 10 = 130 × 42 = 270 × 23 = 114 × 73 = 200 × 40 = 290 × 16 = 455 × 10 = 160 × 30 = 100 × 80 = 633 × 12 = 171 × 30 = 217 × 10 =760 × 10 = 100 × 84 = 355 × 19 = 164 × 19 = 214 × 30 = 103 × 90 = 310 × 28 = 224 × 30 = 892 × 10 = 280 × 30 = 246 × 30 = 730 × 10 = 200 × 30 = 430 × 11 = 198 × 13 = 108 × 30 = 500 × 14 = 898 × 10 = 200 × 50 = 120 × 83 = 336 × 10 = 470 × 12 = 190 × 48 = 300 × 29 = 953 × 10 = 149 × 33 = 443 × 13 = 190 × 30 = 110 × 42 = 199 × 26 = 500 × 20 = 300 × 10 = 600 × 10 = 148 × 44 = 243 × 16 = 320 × 23 = 660 × 14 = 642 × 13 = 380 × 10 = 102 × 70 = 140 × 30 = 123 × 50 = 330 × 24 = 304 × 25 = 160 × 23 = 265 × 14 = 10 × 40 = 431 × 10 = 250 × 40 = 250 × 11 = 150 × 40 = 180 × 11 = 231 × 19 = 135 × 68 = 400 × 20 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 60 = 410 × 20 = 550 × 16 = 830 × 10 = 224 × 28 = 390 × 13 = 250 × 40 = 160 × 30 = 174 × 25 = 262 × 10 = 210 × 44 = 688 × 11 = 40 × 70 = 198 × 34 = 587 × 12 = 670 × 11 = 255 × 30 = 562 × 10 = 160 × 41 = 245 × 36 = 500 × 14 = 800 × 10 = 280 × 12 = 135 × 26 = 103 × 90 = 330 × 24 = 150 × 50 = 631 × 10 = 40 × 20 = 400 × 14 = 990 × 10 = 349 × 26 = 100 × 90 = 180 × 20 = 465 × 12 = 168 × 10 = 125 × 70 = 110 × 70 = 175 × 46 = 165 × 32 = 158 × 60 = 152 × 40 = 633 × 12 = 280 × 30 = 335 × 12 =210 × 20 = 552 × 10 = 390 × 10 = 100 × 70 = 140 × 60 = 150 × 40 = 142 × 70 = 223 × 10 = 110 × 20 = 100 × 35 = 244 × 30 = 272 × 20 = 200 × 30 = 930 × 10 = 892 × 10 = 755 × 10 = 875 × 10 = 270 × 13 = 200 × 50 = 130 × 21 = 123 × 50 = 140 × 61 = 100 × 30 = 408 × 10 = 184 × 26 = 106 × 10 = 630 × 10 = 360 × 20 = 40 × 40 = 220 × 44 = 186 × 13 = 380 × 10 = 474 × 15 = 214 × 30 = 587 × 15 = 199 × 26 = 218 × 10 = 470 × 12 = 472 × 20 = 170 × 34 = 160 × 11 = 711 × 10 = 120 × 64 = 336 × 10 = 180 × 10 = 565 × 10 = 235 × 40 = 540 × 10 = 550 × 10 = 310 × 28 = 110 × 14 = 10 × 60 = 165 × 20 = 374 × 20 = 130 × 16 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:120 × 44 = 160 × 60 = 160 × 23 = 160 × 10 = 300 × 30 = 250 × 40 = 640 × 10 = 930 × 10 = 120 × 83 = 165 × 10 = 123 × 50 = 990 × 10 = 305 × 27 = 331 × 30 = 139 × 50 = 300 × 10 = 330 × 24 = 180 × 10 = 125 × 76 = 495 × 16 = 103 × 90 = 200 × 30 = 300 × 20 = 200 × 40 = 199 × 26 = 239 × 37 = 400 × 10 = 355 × 19 = 290 × 14 = 825 × 10 = 898 × 10 = 246 × 30 = 477 × 16 = 300 × 22 = 120 × 53 = 113 × 45 = 336 × 10 = 755 × 10 = 50 × 60 = 118 × 60 = 344 × 12 = 40 × 50 = 400 × 20 = 200 × 50 = 328 × 10 =390 × 10 = 848 × 10 = 175 × 46 = 472 × 20 = 60 × 70 = 140 × 31 = 431 × 10 = 384 × 10 = 217 × 10 = 408 × 10 = 214 × 30 = 265 × 18 = 410 × 20 = 90 × 10 = 688 × 11 = 110 × 11 = 114 × 73 = 133 × 27 = 380 × 10 = 160 × 30 = 200 × 20 = 235 × 40 = 198 × 34 = 290 × 21 = 210 × 44 = 165 × 32 = 100 × 68 = 470 × 12 = 101 × 46 = 660 × 14 = 120 × 66 = 180 × 11 = 630 × 12 = 444 × 20 = 450 × 10 = 110 × 60 = 800 × 10 = 565 × 10 = 545 × 15 = 50 × 10 = 552 × 10 = 184 × 26 = 100 × 80 = 100 × 84 = 650 × 15 = 150 × 10 = 190 × 10 = 165 × 20 = 125 × 70 = 400 × 14 = 162 × 40 = 953 × 10 = 147 × 46 = 188 × 50 = 600 × 10 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:164 × 20 = 40 × 40 = 200 × 10 = 249 × 20 = 214 × 30 = 100 × 84 = 350 × 24 = 160 × 30 = 120 × 64 = 100 × 35 = 227 × 22 = 470 × 17 = 390 × 10 = 120 × 83 = 184 × 26 = 280 × 13 = 100 × 80 = 100 × 20 = 450 × 17 = 20 × 50 = 180 × 40 = 160 × 36 = 100 × 50 = 164 × 55 = 335 × 12 = 160 × 33 = 165 × 20 = 224 × 28 = 455 × 10 = 148 × 50 = 180 × 11 = 260 × 10 = 181 × 47 = 310 × 28 = 120 × 53 = 900 × 10 = 280 × 12 = 158 × 60 = 115 × 14 = 199 × 26 = 130 × 21 = 600 × 10 = 158 × 55 = 460 × 16 = 129 × 50 =102 × 80 = 270 × 23 = 410 × 20 = 390 × 13 = 500 × 20 = 210 × 27 = 380 × 12 = 228 × 20 = 175 × 46 = 140 × 60 = 359 × 25 = 410 × 17 = 700 × 10 = 370 × 23 = 130 × 37 = 239 × 10 = 475 × 17 = 149 × 33 = 177 × 10 = 215 × 12 = 360 × 26 = 240 × 24 = 198 × 13 = 100 × 60 = 100 × 97 = 336 × 10 = 990 × 10 = 239 × 37 = 246 × 20 = 100 × 10 = 630 × 15 = 330 × 24 = 123 × 50 = 246 × 36 = 110 × 86 = 432 × 15 = 312 × 23 = 395 × 20 = 165 × 32 = 578 × 10 = 633 × 12 = 125 × 70 = 140 × 40 = 120 × 40 = 20 × 60 = 150 × 40 = 246 × 30 = 304 × 25 = 300 × 10 = 180 × 30 = 162 × 40 = 172 × 30 = 484 × 15 = 630 × 10 = 196 × 50 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:648 × 10 = 362 × 15 = 880 × 10 = 132 × 20 = 160 × 30 = 304 × 25 = 630 × 15 = 431 × 10 = 130 × 54 = 100 × 80 = 110 × 78 = 190 × 15 = 184 × 26 = 410 × 20 = 129 × 50 = 162 × 40 = 183 × 50 = 647 × 10 = 280 × 30 = 755 × 10 = 800 × 10 = 935 × 10 = 550 × 10 = 114 × 73 = 565 × 10 = 105 × 48 = 310 × 30 = 140 × 31 = 110 × 10 = 330 × 24 = 500 × 20 = 246 × 30 = 410 × 17 = 175 × 35 = 120 × 62 = 100 × 20 = 440 × 12 = 390 × 13 = 640 × 11 = 210 × 36 = 248 × 25 = 218 × 10 = 472 × 20 = 230 × 10 = 224 × 28 =248 × 20 = 120 × 60 = 198 × 13 = 450 × 20 = 540 × 10 = 688 × 11 = 598 × 10 = 336 × 10 = 250 × 40 = 168 × 41 = 155 × 10 = 820 × 10 = 80 × 10 = 10 × 30 = 660 × 14 = 105 × 82 = 303 × 29 = 630 × 10 = 160 × 23 = 134 × 50 = 110 × 70 = 195 × 36 = 408 × 10 = 214 × 30 = 990 × 10 = 900 × 10 = 100 × 30 = 240 × 30 = 330 × 10 = 953 × 10 = 100 × 25 = 355 × 19 = 130 × 20 = 350 × 15 = 200 × 10 = 125 × 70 = 246 × 36 = 400 × 14 = 120 × 44 = 631 × 10 = 300 × 20 = 130 × 69 = 540 × 14 = 380 × 17 = 100 × 32 = 152 × 60 = 260 × 20 = 143 × 68 = 180 × 10 = 370 × 18 = 100 × 84 = 175 × 46 = 840 × 10 = 174 × 36 = 217 × 10 =练习范围：三位数乘两位数题数：100 月日姓名: 分秒成绩:400 × 10 = 140 × 31 = 146 × 65 = 180 × 11 = 330 × 24 = 140 × 60 = 770 × 12 = 160 × 60 = 300 × 28 = 100 × 70 = 134 × 50 = 400 × 13 = 200 × 10 = 400 × 14 = 498 × 15 = 160 × 30 = 100 × 20 = 842 × 10 = 304 × 25 = 130 × 32 = 228 × 40 = 820 × 10 = 431 × 10 = 220 × 30 = 454 × 20 = 224 × 28 = 199 × 26 = 40 × 40 = 688 × 11 = 235 × 40 = 310 × 30 = 654 × 15 = 258 × 20 = 120 × 83 = 110 × 30 = 930 × 10 = 110 × 34 = 359 × 25 = 130 × 21 = 892 × 10 = 120 × 44 = 470 × 12 = 150 × 18 = 286 × 30 = 267 × 13 =。
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899×62≈20÷10＝30÷5×5＝558÷70≈59×50＝1200÷30＝500×20＝22×30＝1×12÷4＝2400÷8＝18×70＝3×24÷4＝200－37＝14×60＝43755170≈( )万600－30＝40÷10＝49÷7×9＝100×40＝73－11＝54÷9×7＝800×10＝65＋12＝293548673374≈( )亿700－38＝11×60＝1600÷40＝400×60＝90÷10＝9×49÷7＝800×50＝83＋34＝72÷9×6＝701×58≈90÷30＝4200÷70＝280÷40＝24×50＝69524238≈( )万901×41≈40÷20＝7×4÷4＝400×10＝50÷10＝24÷6×5＝2400÷8＝48×30＝5600÷80＝4800÷8＝89×30＝6×2÷2＝362÷40≈90÷30＝4800÷60＝100×30＝20×90＝5×63÷7＝1400÷2＝80÷40＝63÷7×5＝1200÷4＝17×80＝1400÷70＝348÷70≈75－14＝19629450≈( )万5600÷8＝30×50＝700÷10＝3600÷4＝59＋47＝500÷10＝500×30＝84－19＝3×45÷5＝900×30＝10÷10＝4×72÷9＝282÷40≈90÷30＝331319624291≈( )亿502×32≈96×80＝9×63÷7＝900×70＝54＋11＝25÷5×4＝8100÷9＝91×70＝40÷5×7＝6300÷9＝11×50＝5×21÷3＝2100÷7＝56－30＝217305039读作:500－31＝27×30＝54÷6×7＝298×21≈70×50＝286376913608≈( )亿200×60＝16×30＝36÷9×6＝200－33＝28×90＝14÷7×8＝800×50＝40÷20＝4×42÷7＝500－20＝16×70＝18÷6×2＝400×60＝95×90＝602277120读作:500－53＝14×30＝25÷5×9＝482÷60≈59＋29＝72÷8×5＝3000÷5＝19×20＝4×20÷4＝400×10＝20×90＝586282982读作:3600÷6＝97－25＝2400÷30＝700×60＝80＋14＝4500÷50＝700－62＝80－22＝2×42÷6＝298×39≈85×80＝380770337读作:400×90＝14×30＝260252418读作:1400÷7＝90＋11＝3500÷70＝240÷80＝19×70＝4200÷70＝4200÷6＝17×20＝24÷8×2＝400÷80＝62－23＝18÷2×2＝500－31＝53＋15＝48÷6×8＝500×40＝19×40＝36÷9×6＝140÷20＝28×80＝28÷4×2＝478÷60≈30÷10＝8×20÷4＝602÷60≈99＋40＝684043525428≈( )亿200÷20＝26×60＝78861415≈( )万3600÷4＝95－30＝56÷7×7＝9000÷9＝18×30＝72÷9×3＝120÷20＝30÷30＝8÷2×5＝700－33＝20×40＝660937369读作:800－89＝77×80＝10÷2×6＝300－48＝26×30＝965596619682≈( )亿200÷20＝92×50＝1600÷20＝418÷60≈20×90＝90731096≈( )万700×70＝28×30＝4200÷60＝2700÷3＝24×40＝1400÷70＝400×90＝92×70＝830597719读作:630÷70＝20×80＝428052327766≈( )亿490÷70＝20÷20＝72÷9×9＝252÷50≈80÷20＝52563069≈( )万1200÷3＝81－36＝403778292131≈( )亿2700÷3＝94×70＝4900÷70＝898×71≈902÷9≈988004740读作:178÷30≈562÷7≈24÷4×5＝212÷70≈81＋11＝549261070读作:700－62＝22×40＝18÷9×3＝492÷70≈11×20＝1000÷50＝6300÷7＝30÷30＝8×40÷5＝600－55＝38×20＝4000÷50＝240÷60＝60÷20＝433236229001≈( )亿140÷20＝80÷20＝3509682≈( )万3200÷4＝27×20＝42261779≈( )万3200÷8＝20×20＝6÷3×7＝898×48≈84×50＝100÷10＝100×60＝35×90＝9×40÷8＝100×80＝70÷10＝3737372≈( )万1600÷4＝71×50＝6×72÷9＝700×30＝16×80＝553337523读作:800－24＝89×40＝48÷6×7＝500－28＝26×60＝8×27÷3＝160÷80＝27×40＝2×14÷7＝142÷20≈60＋27＝3×42÷7＝448÷90≈68－10＝18÷3×6＝600×10＝73×90＝1500÷30＝140÷20＝56＋23＝2400÷40＝900－12＝64×80＝2800÷40＝479÷60≈13×50＝416147977328≈( )亿360÷60＝75＋24＝42÷7×3＝202×28≈27×30＝6×40÷5＝160÷20＝51－42＝54÷9×4＝400－36＝50÷10＝7×12÷2＝900×10＝71－50＝45÷5×6＝900－35＝80÷20＝2400÷40＝100×40＝21×70＝50278489≈( )万800－99＝24×70＝3500÷70＝120÷20＝11×30＝5400÷60＝3000÷5＝40÷10＝9×42÷6＝100÷10＝30÷10＝24÷6×5＝212÷30≈13×10＝12÷2×6＝400×40＝27×30＝4×40÷5＝120÷40＝202÷5≈45÷5×7＝400×70＝56＋21＝76659818≈( )万500－77＝38×30＝10÷2×9＝300×50＝30×10＝918147798697≈( )亿800×70＝98×80＝8100÷90＝120÷40＝72－24＝231579903读作:299÷50≈79＋15＝24÷6×4＝2400÷4＝28×70＝9×36÷9＝540÷90＝63＋42＝8×21÷3＝702×68≈30÷30＝4000÷80＝801×52≈25×60＝28930971≈( )万900×50＝44×50＝3×9÷9＝200－48＝50－40＝3500÷50＝200－68＝60÷30＝1×6÷3＝600×40＝20×90＝2400÷40＝1000÷2＝91×50＝21÷7×8＝150÷30＝91×20＝400895856读作:160÷80＝13×30＝63÷9×6＝302×28≈16×40＝1000÷20＝7200÷9＝24×70＝1200÷20＝1500÷3＝19×90＝8×45÷5＝240÷30＝299÷3≈5600÷70＝8100÷9＝40÷40＝2400÷40＝1800÷6＝69－35＝7×21÷3＝199÷50≈50－11＝27440083462≈( )亿500×40＝281÷4≈8×20÷5＝100÷10＝98×30＝1×6÷6＝100－93＝95＋49＝18÷6×9＝800－12＝90÷30＝700÷10＝500－77＝80÷20＝18÷6×4＝120÷20＝77×60＝8×24÷3＝700×20＝83＋25＝6300÷70＝702×41≈32×60＝1200÷20＝800×60＝74×70＝18÷6×8＝700×40＝12×60＝4×10÷5＝199×29≈80÷40＝95756985读作:600×30＝71＋48＝9×40÷8＝1600÷2＝57＋14＝18÷2×4＝501×52≈97－33＝1500÷30＝239÷40≈27×50＝5×56÷8＝140÷70＝78×20＝5×12÷6＝7200÷9＝80÷20＝14÷7×2＝3200÷4＝68－40＝435359294040≈( )亿100÷10＝489÷7≈4×16÷8＝400×70＝76＋20＝4×15÷5＝300÷60＝51－26＝2400÷40＝181÷30≈40÷40＝100÷10＝178÷90≈99－49＝562470446886≈( )亿248÷50≈54＋27＝4800÷60＝270÷90＝34×70＝7200÷80＝700－84＝37×60＝5×14÷2＝3600÷4＝80÷10＝900÷30＝200×10＝86×30＝6×21÷3＝600×60＝63×40＝24÷3×8＝2400÷4＝89－33＝8×4÷2＝600×50＝13×60＝300÷30＝539÷90≈92－47＝800÷80＝350÷50＝42×30＝12÷3×3＝799÷80≈76－36＝2400÷80＝900－62＝88＋28＝2700÷30＝800－14＝43×20＝1148846≈( )万160÷80＝80÷40＝5×5÷5＝100－21＝16×60＝620697738读作:4200÷7＝40÷40＝8×63÷9＝350÷70＝82＋35＝3500÷50＝122÷40≈80÷40＝3×24÷3＝632÷90≈91＋23＝12÷2×8＝600－19＝281÷4≈32÷8×9＝5600÷7＝13×80＝7200÷80＝199÷20≈179÷3≈54÷6×9＝270÷30＝21×70＝25574372066≈( )亿600÷60＝72＋31＝9×20÷4＝499÷50≈17×40＝469174069读作:1000÷2＝18×40＝61996817≈( )万631÷70≈272÷3≈42÷6×3＝240÷40＝23×30＝800÷80＝99÷20≈67＋31＝48÷6×2＝202×48≈18×80＝4×20÷5＝100÷20＝40÷20＝1600÷40＝400－60＝27×10＝9×56÷8＝5400÷6＝11×60＝514483115024≈( )亿801×29≈77×40＝600÷10＝1200÷2＝71－20＝49÷7×8＝600－17＝51－20＝600÷20＝602÷60≈40÷20＝1600÷80＝8000÷8＝20×70＝700÷10＝6300÷7＝70＋36＝2700÷30＝300－57＝62－36＝2×36÷4＝300×90＝86＋25＝272711937读作:240÷30＝64×50＝6×36÷4＝700×50＝58－34＝212602306719≈( )亿900－86＝15×40＝3×24÷8＝700－18＝16×30＝26857572≈( )万600×40＝84＋40＝900÷90＝6300÷7＝19×60＝40÷5×7＝182÷30≈15×40＝1800÷30＝349÷50≈21×70＝18÷2×5＝198×58≈28×50＝90043045读作:1600÷8＝66×50＝614326709读作:100－28＝98×30＝900÷30＝198÷40≈18×60＝500÷50＝148÷30≈58×60＝4×14÷2＝900－92＝40÷40＝12÷6×9＝700×60＝22×70＝393822840读作:800×20＝20÷10＝7×36÷9＝200－41＝50÷10＝14801413≈( )万600×50＝47×70＝54÷6×6＝299×62≈30÷30＝28÷4×3＝6400÷8＝40÷40＝700÷70＝210÷30＝99－40＝1200÷40＝800－28＝14×60＝341731709124≈( )亿242÷40≈67＋35＝123506828读作:100×50＝21×50＝36÷6×9＝362÷90≈53＋26＝54÷6×3＝4500÷9＝82－25＝5400÷90＝160÷20＝19×70＝63÷7×2＝1200÷2＝239÷8≈5×35÷7＝700×90＝58＋31＝3200÷40＝800×90＝13×20＝163386164读作:300×40＝95×50＝7200÷90＝720÷80＝18×90＝1×10÷2＝400÷80＝50－16＝287111725读作:200×90＝91×60＝1×35÷5＝300－51＝558÷8≈5400÷90＝2400÷4＝81－14＝661395054读作:250÷50＝44×90＝800÷10＝560÷70＝241÷3≈600÷60＝152÷50≈53＋41＝80396031≈( )万300×50＝30×50＝45÷5×2＝600－52＝99＋10＝49÷7×7＝799×41≈25×30＝314318506读作:700－24＝80÷40＝3×49÷7＝700×50＝80÷10＝860802060510≈( )亿2400÷3＝20×70＝201100285192≈( )亿140÷20＝29×20＝229577308读作:2800÷7＝73×20＝8÷4×4＝298÷50≈28×30＝1500÷50＝500－83＝23×90＝887937049575≈( )亿900－77＝27×50＝486542040295≈( )亿421÷60≈562÷8≈4200÷60＝600×40＝94－23＝168816797347≈( )亿700×10＝30÷10＝4×18÷6＝698×62≈50－13＝2×81÷9＝100×70＝68＋36＝6×15÷3＝600－43＝98－35＝5×10÷2＝100÷50＝77×40＝16÷8×5＝180÷30＝22×80＝600÷30＝5000÷5＝80÷10＝15152164≈( )万418÷70≈27×50＝2800÷40＝801×49≈81－36＝100÷10＝3500÷5＝69＋47＝600÷30＝900－65＝88－16＝8×24÷8＝208÷30≈48×70＝6×30÷6＝198×21≈31×90＝35÷7×4＝900－49＝72×40＝542798381读作:902×28≈25×10＝42÷7×7＝301×81≈40÷40＝6×35÷5＝300－45＝29×20＝3753498978≈( )亿400－24＝20÷20＝30292036读作:99÷20≈57×90＝27÷9×5＝1200÷3＝299÷5≈2400÷60＝1400÷2＝77＋11＝24÷6×5＝200－50＝60÷30＝6300÷90＝161÷40≈80÷20＝22354389≈( )万1600÷2＝19×10＝631232956118≈( )亿200－86＝30÷30＝36÷9×7＝500－63＝91－39＝15÷5×2＝480÷60＝77－42＝704559438913≈( )亿810÷90＝82×60＝8×5÷5＝241÷40≈37×60＝400÷40＝100×50＝79×60＝554530238690≈( )亿4500÷9＝37×60＝2×8÷8＝398÷50≈22×80＝30÷6×9＝200－53＝26×20＝344923043099≈( )亿402×92≈86＋42＝2×45÷5＝1600÷8＝24×90＝36÷9×8＝4800÷6＝71－13＝118564226299≈( )亿720÷90＝97×60＝36÷4×5＝300－45＝20×10＝8÷4×5＝1500÷3＝12×80＝61729492≈( )万280÷70＝40÷40＝15÷3×6＝6300÷7＝15×20＝4×36÷4＝542÷60≈10÷10＝4800÷80＝702×89≈179÷9≈4500÷50＝630÷70＝21×60＝4200÷60＝120÷40＝22×60＝2700÷30＝630÷90＝89＋50＝63÷7×2＝320÷80＝29×70＝3×24÷4＝140÷20＝81＋27＝8×15÷5＝900－19＝70×90＝18÷2×5＝8100÷9＝27×70＝3×4÷4＝400×90＝19×40＝687908188读作:540÷90＝30×30＝252001176读作:702×71≈50÷10＝64÷8×9＝100－91＝12×20＝509533675571≈( )亿300×30＝57＋35＝200÷10＝900－68＝30÷30＝1600÷80＝600×80＝60÷20＝585123602读作: 198×48≈22×10＝28÷4×5＝240÷60＝18×70＝8×40÷8＝100×40＝20×40＝1800÷60＝1800÷2＝82＋42＝900÷90＝240÷40＝80÷20＝21÷3×9＝700－46＝14×30＝57200649≈( )万2100÷7＝90÷30＝13117328≈( )万900×50＝87×50＝8×35÷5＝2500÷5＝91＋16＝2400÷30＝100－95＝10÷10＝5400÷60＝199×92≈17×90＝9×27÷3＝2800÷7＝75＋42＝75787375≈( )万179÷90≈80－48＝1500÷50＝400－75＝70－21＝2×54÷6＝100－66＝10÷10＝5×20÷5＝100－38＝40÷40＝59128149≈( )万4800÷6＝93×90＝1200÷30＝900×90＝21×20＝10÷2×4＝500×70＝36×40＝1×10÷5＝300×40＝19×20＝1×8÷4＝492÷70≈59×40＝36÷6×5＝100×90＝92×40＝9×32÷8＝700－49＝47×30＝18÷3×3＝150÷30＝24×70＝30851851读作:600÷60＝60－38＝830775038413≈( )亿699×42≈84＋46＝7200÷90＝100÷10＝27×10＝600÷60＝3500÷7＝89×90＝700÷10＝120÷30＝73－24＝400÷20＝100÷10＝239÷3≈9×45÷5＝1200÷4＝71－15＝30÷5×3＝200－29＝299÷6≈8×20÷5＝8100÷9＝60÷20＝620876664905≈( )亿300－66＝14×50＝1800÷30＝100÷20＝76－30＝81÷9×8＝198×88≈23×40＝1×9÷9＝600×10＝13×10＝6×32÷4＝600－75＝30÷10＝1000÷20＝488÷70≈46×40＝4500÷90＝8100÷9＝63×20＝8÷4×3＝401÷50≈90÷30＝400÷20＝100÷10＝10÷10＝4÷2×6＝400－52＝56＋29＝6×36÷9＝240÷40＝42×20＝5×21÷3＝100÷10＝19×90＝6400÷80＝630÷70＝93×90＝475888773读作:2400÷3＝17×40＝4900÷70＝700－28＝15×30＝1600÷20＝600－76＝15×60＝36÷9×9＝600×80＝14×40＝54÷9×6＝362÷90≈30÷30＝73887197读作:900－63＝82×60＝8×4÷2＝400÷40＝40÷40＝42÷6×3＝400－89＝54－41＝2100÷30＝100÷10＝602÷6≈40÷8×2＝900×90＝80÷40＝57728438≈( )万299×68≈48×70＝12÷2×6＝300×20＝161÷8≈782383526495≈( )亿282÷70≈28×70＝1400÷70＝900－84＝32×20＝12÷3×5＝100×70＝73×70＝40÷8×4＝100×80＝95＋26＝4200÷70＝700－60＝19×50＝15÷3×8＝360÷40＝95＋28＝634579512302≈( )亿799×49≈80÷20＝360838023读作:540÷60＝23×70＝52723035≈( )万419÷70≈28×60＝2000÷50＝800×70＝61＋25＝21÷3×8＝699÷70≈11×60＝9873324≈( )万3000÷5＝78×90＝474558806616≈( )亿900×40＝40×10＝68151888≈( )万150÷50＝80÷20＝7×48÷6＝6400÷8＝36×80＝8÷4×8＝100÷10＝25×90＝831417497读作:500－86＝24×50＝271726579552≈( )亿1800÷3＝15×80＝4÷2×3＝898×78≈86－45＝425202271683≈( )亿800×80＝28×40＝5×16÷2＝9000÷9＝94＋24＝6300÷70＝300×30＝40÷20＝62789962≈( )万600×20＝18×40＝23890422≈( )万360÷90＝15×40＝39096967≈( )万1000÷2＝60÷20＝33835085≈( )万1000÷2＝11×70＝900÷30＝100－56＝78＋16＝1400÷70＝700－78＝54＋32＝139977522442≈( )亿699×79≈89－30＝27÷9×9＝2100÷3＝27×10＝4×16÷2＝398÷50≈61－48＝2×40÷8＝178÷90≈27×40＝1×45÷9＝280÷40＝87＋31＝15077607≈( )万6400÷8＝13×20＝747915620242≈( )亿1400÷7＝22×80＝3200÷80＝140÷20＝40÷20＝51154084≈( )万400－36＝30÷10＝173997508891≈( )亿1800÷3＝50×60＝8×49÷7＝399×82≈54＋23＝20÷4×2＝6300÷7＝30÷30＝8÷2×4＝1800÷3＝80÷40＝354453975读作:799÷80≈40×60＝8100÷90＝600×30＝96＋42＝8×8÷8＝4500÷9＝27×60＝7×27÷9＝1000÷5＝561÷8≈3×12÷3＝4000÷4＝80÷40＝18÷2×4＝490÷70＝27×10＝646556305读作:900－69＝18×50＝7×27÷9＝200×40＝28×10＝3600÷40＝5400÷9＝75＋36＝868059672读作:500×80＝46×30＝20÷4×8＝4800÷6＝80＋15＝15÷5×8＝360÷60＝89＋47＝778562471463≈( )亿241÷60≈58－35＝24÷3×6＝150÷30＝62－32＝7×63÷9＝300－23＝62×90＝4800÷80＝600－34＝13×30＝48÷8×5＝182÷30≈24×10＝900÷10＝700×80＝15×50＝24÷3×5＝400－33＝96＋40＝63655203≈( )万100÷10＝40÷40＝6300÷90＝400×60＝90÷30＝6×56÷8＝300×50＝62＋12＝87938186385≈( )亿560÷70＝30÷30＝5600÷70＝1600÷2＝19×60＝800÷20＝898×18≈15×60＝6×7÷7＝400×10＝299÷3≈4000÷50＝562÷80≈44×70＝40÷8×2＝280÷40＝58×70＝260077092475≈( )亿200÷50＝20÷10＝5×24÷8＝298÷30≈30×40＝32453339读作:300－80＝80÷20＝56÷8×8＝420÷60＝41×10＝15÷3×6＝480÷80＝80÷40＝47003231≈( )万160÷40＝17×50＝4569911≈( )万800×50＝73－48＝15908268≈( )万399×91≈25×70＝5×4÷2＝898×68≈30÷30＝5600÷70＝161÷80≈10÷10＝4×49÷7＝3000÷6＝54×20＝192233166读作:210÷70＝122÷2≈900÷10＝200－19＝40÷40＝6×8÷8＝900－30＝18×50＝25÷5×7＝500－86＝178÷2≈4×40÷5＝900－11＝29×90＝918191973700≈( )亿300×90＝70＋43＝719135477149≈( )亿300－22＝62×10＝25109501≈( )万480÷60＝13×10＝81÷9×3＝901÷90≈68＋11＝32÷4×3＝100÷10＝40÷20＝553675578读作:600÷60＝79＋35＝4800÷60＝400×30＝17×10＝8÷2×8＝3500÷7＝63×80＝82744633≈( )万150÷50＝57＋45＝14÷7×7＝322÷40≈80÷40＝40÷8×2＝698×42≈15×90＝4000÷50＝100÷20＝60÷30＝20÷5×4＝2000÷2＝56×30＝88609781≈( )万100÷10＝84－14＝1×30÷5＝498×39≈13×60＝1×30÷6＝400÷50＝80÷40＝2000÷50＝100－45＝21×60＝1×16÷8＝7200÷9＝60÷20＝5400÷60＝600×30＝13×90＝6300÷70＝600×20＝60÷30＝30÷5×7＝400×20＝122÷3≈10÷5×3＝200－46＝95－27＝173340881116≈( )亿200×60＝80÷40＝2×56÷8＝900－48＝68＋32＝27÷3×3＝140÷20＝40÷10＝400÷40＝900×90＝63×30＝24÷8×5＝900×30＝59－10＝3×28÷7＝600×80＝82－31＝3×48÷8＝1800÷3＝90÷30＝160256522读作:598×61≈80＋14＝669765830读作:1800÷3＝30÷10＝8×49÷7＝500×90＝80÷40＝5×12÷3＝800－67＝13×20＝317019284739≈( )亿900－14＝90×60＝500÷10＝200－16＝53×50＝1200÷60＝270÷90＝54－16＝42÷7×2＝2100÷7＝80÷10＝900÷30＝1000÷2＝75×90＝965998212读作:700×70＝85＋38＝8×32÷8＝201×91≈24×50＝12÷2×7＝1500÷5＝84×70＝486731676读作:700×90＝271÷9≈24÷4×3＝2000÷5＝40÷40＝2400÷30＝1600÷8＝20×30＝2700÷30＝200×30＝71×10＝218646930读作:800－48＝80÷10＝6×18÷2＝100×90＝59×90＝5×3÷3＝100÷20＝28×60＝36÷4×8＝500×30＝27×80＝1200÷20＝600－96＝60÷30＝353227016读作:2400÷4＝87－41＝6×56÷8＝600×20＝60÷30＝300÷30＝600×50＝60÷30＝21÷3×7＝500×70＝23×90＝4×24÷3＝208÷30≈61－46＝4000÷80＝400×90＝13×60＝700÷10＝360÷60＝10÷10＝1500÷30＝700×70＝68＋26＝1320921≈( )万400÷50＝90÷30＝9×54÷6＝902×22≈14×30＝629537826读作:360÷60＝74×40＝7×45÷9＝300－77＝84－48＝1200÷60＝300×30＝21×20＝1×20÷5＝252÷50≈81＋47＝36÷9×2＝898×22≈239÷8≈45÷9×9＝180÷90＝11×70＝705380461150≈( )亿8100÷9＝21×10＝17835013≈( )万802×79≈58×30＝18341131≈( )万801×69≈80÷20＝674341191读作:7200÷8＝39×50＝8×56÷8＝180÷20＝50÷10＝474080047读作:2800÷7＝71×30＝9×4÷4＝201×42≈55×40＝24÷8×8＝1000÷5＝85×90＝70149713读作:602×62≈55－14＝6×14÷7＝358÷60≈60×50＝2×8÷4＝400÷40＝80÷10＝15÷3×8＝490÷70＝30×40＝8×6÷6＝240÷30＝91－25＝8÷4×7＝1200÷3＝30×80＝726858810读作:6300÷9＝62×70＝12÷6×7＝360÷90＝20÷20＝35÷5×2＝400÷50＝40÷20＝3×12÷6＝3500÷7＝83×50＝2400÷60＝1200÷4＝19×10＝52993166≈( )万3500÷7＝60÷30＝1200÷20＝1200÷4＝27×30＝49301846≈( )万2700÷3＝16×20＝9×6÷6＝4000÷4＝88－31＝48264621读作:2000÷5＝30÷30＝8×24÷8＝398×32≈24×70＝7×8÷8＝700×70＝64－43＝7×16÷4＝478÷60≈13×40＝24÷3×2＝320÷80＝21×60＝200÷10＝300÷50＝73×40＝236941467423≈( )亿100÷10＝84＋19＝391771496读作:300×10＝448÷9≈4000÷50＝351÷70≈90÷30＝8×64÷8＝500－71＝46×50＝413947334读作:1400÷7＝28×40＝14÷7×5＝400×30＝50÷10＝6×9÷3＝241÷80≈87＋49＝682112695读作:3600÷6＝76＋48＝88065732≈( )万499×59≈96×70＝300÷30＝201×89≈21×80＝42366266≈( )万100×10＝15×70＝170576032读作:142÷20≈13×30＝5×3÷3＝1200÷2＝19×60＝218130547810≈( )亿300－97＝24×20＝1500÷30＝1800÷2＝40÷40＝5600÷80＝400×40＝28×40＝24÷4×3＝100×70＝20÷10＝273527675644≈( )亿602×72≈80÷10＝775100921866≈( )亿800×50＝71×80＝18÷3×9＝500×10＝90×10＝1400÷70＝100÷10＝60÷20＝327805571读作:8000÷8＝85－41＝300÷10＝1500÷3＝77×40＝3×6÷6＝600×40＝66×50＝2×21÷7＝122÷40≈85－30＝351031259914≈( )亿800－63＝73×20＝8÷2×3＝400×60＝13×20＝36÷4×5＝401÷40≈20÷20＝73798828≈( )万601×42≈30×60＝7×12÷3＝1200÷6＝30÷30＝16÷4×6＝1600÷2＝70×10＝49÷7×7＝600×20＝18×80＝45÷9×5＝500×30＝22×40＝900÷10＝120÷40＝50×60＝59604990≈( )万500×30＝26×90＝915589934851≈( )亿240÷30＝24×70＝7×48÷6＝200－89＝85＋33＝596410588862≈( )亿100－12＝86－38＝599416555649≈( )亿500－37＝79－45＝600÷20＝250÷50＝53－44＝5×20÷4＝1800÷6＝70－23＝420641365034≈( )亿898×91≈25×40＝936282289113≈( )亿200÷40＝80×70＝3×12÷6＝700×40＝75＋47＝800÷20＝299×68≈14×50＝500÷10＝100×40＝63－27＝8×5÷5＝242÷30≈73×80＝5400÷90＝180÷30＝80÷40＝800÷80＝242÷60≈40÷40＝2400÷80＝4800÷8＝40÷10＝35÷7×8＝150÷30＝54＋12＝42÷7×9＝1800÷2＝11×50＝1×42÷6＝100×20＝27×80＝300÷30＝3000÷5＝60÷30＝92069980≈( )万2000÷4＝30÷30＝7×9÷9＝640÷80＝18×90＝3600÷40＝140÷70＝24×80＝30÷6×2＝300×30＝18×10＝400÷10＝180÷20＝29×40＝9×36÷4＝6000÷6＝17×60＝2×32÷4＝899×89≈70÷10＝3200÷80＝200×90＝49×40＝3200÷40＝800×50＝40÷40＝741163811679≈( )亿599×89≈139÷2≈5400÷60＝901×79≈75×90＝6×3÷3＝502×81≈26×20＝1200÷20＝300－31＝57＋35＝228588699107≈( )亿500×20＝44×40＝200÷20＝140÷20＝98＋15＝760475023179≈( )亿900×10＝40÷10＝4×64÷8＝150÷30＝66＋49＝833521054读作:700－19＝15×50＝885918007读作:240÷80＝56×50＝899800899读作:799×22≈17×10＝15÷5×9＝210÷30＝30÷30＝3×12÷2＝900－28＝539÷6≈16÷8×3＝900－40＝25×40＝3600÷40＝400÷50＝70÷10＝7×14÷2＝100÷10＝80÷20＝295193193读作:400÷40＝30÷10＝4×35÷5＝500－39＝85＋50＝18÷3×7＝800－88＝60÷20＝5600÷80＝99÷20≈16×10＝54÷9×2＝200－30＝40÷40＝54÷9×7＝700×20＝351÷7≈2400÷60＝3500÷7＝22×40＝6400÷80＝8100÷9＝60÷10＝7×36÷6＝400×80＝20÷20＝9×48÷8＝798×38≈562÷7≈7×9÷9＝298×82≈83－19＝1×21÷3＝900×50＝53－13＝825782967读作:200÷40＝72＋17＝880559327431≈( )亿700－56＝90÷30＝508284163989≈( )亿100×80＝54－34＝800÷80＝1200÷6＝53＋15＝391454639800≈( )亿200×80＝28×10＝6×18÷6＝299÷30≈68－40＝77600938≈( )万1000÷2＝94＋18＝18÷9×5＝180÷60＝13×90＝54÷6×9＝600×10＝30÷30＝6×12÷3＝179÷60≈80÷40＝274562802读作:802×49≈59－39＝9×6÷3＝602×91≈40×10＝1800÷60＝700－60＝62－36＝3×24÷4＝601×71≈90－35＝16÷4×9＝1200÷4＝96＋27＝12÷6×6＝2100÷7＝40÷20＝4000÷50＝600×60＝59×30＝3×12÷3＝4500÷5＝298÷6≈500035769读作:3600÷4＝22×30＝216468862读作:800－64＝84－41＝6×18÷2＝900×90＝53×50＝45÷5×4＝2017新编小学四年级数学上册口算题卡班级：姓名：日期：。