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三年級數學因數中間或末尾有零的乘法競賽考核例題姓名:班級:日期:用時:分鐘得分:303×7=701×8=501×6=303×6=807×3=303701501303807×7×8×6×6×3602×7=807×6=408×8=102×8=901×6=602807408102901×7×6×8×8×6205×7=109×6=108×9=809×4=906×2=205109108809906×7×6×9×4×2305×4=509×6=708×8=509×8=708×7=305509708509708×4×6×8×8×7808×7=100×4=908×8=808×2=509×3=808100908808509×7×4×8×2×3906×4=806×2=109×4=304×2=605×8=906806109304605×4×2×4×2×8207×5=500×8=402×2=503×8=108×9=207500402503108×5×8×2×8×9705×7=703×2=805×9=606×6=708×3=705703805606708×7×2×9×6×3202×9=208×9=508×3=804×8=306×3=202208508804306×9×9×3×8×3803×3=101×8=208×2=909×6=305×2=803101208909305×3×8×2×6×2606×7=206×7=306×4=706×7=306×8=606206306706306×7×7×4×7×8701×9=901×2=703×4=307×3=502×6=701901703307502×9×2×4×3×6300×2=101×9=706×4=501×4=103×8=300101706501103×2×9×4×4×8704×4=407×8=608×4=600×2=200×2=704407608600200×4×8×4×2×2109×4=704×9=202×4=907×5=709×8=109704202907709×4×9×4×5×8907×3=705×7=108×4=604×5=802×5=907705108604802×3×7×4×5×5507×3=102×6=507×4=809×5=101×5=507102507809101×3×6×4×5×5502×4=607×3=803×5=705×5=601×3=502607803705601×4×3×5×5×3404×2=403×7=100×4=607×8=505×6=404403100607505×2×7×4×8×6205×7=205×7=708×2=102×2=604×4=205205708102604×7×7×2×2×4709×3=206×2=100×8=803×3=305×2=709206100803305×3×2×8×3×2506×3=409×6=303×3=704×5=600×7=506409303704600×3×6×3×5×7601×4=302×7=702×2=505×8=408×5=601302702505408×4×7×2×8×5508×7=509×6=109×9=500×6=305×2=508509109500305×7×6×9×6×2104×2=305×4=508×7=207×9=201×7=104305508207201×2×4×7×9×7503×9=706×4=606×7=100×6=600×5=503706606100600×9×4×7×6×5402×3=503×8=308×9=608×7=208×7=402503308608208×3×8×9×7×7206×5=602×9=201×3=203×3=609×5=206602201203609×5×9×3×3×5808×9=205×4=306×4=301×5=306×2=808205306301306×9×4×4×5×2502×7=109×4=209×9=405×3=802×7=502109209405802×7×4×9×3×7906×4=107×2=607×5=503×4=100×8=906107607503100×4×2×5×4×8604×8=604×3=708×9=805×9=408×3=604604708805408×8×3×9×9×3708×7=902×7=407×5=803×6=400×5=708902407803400×7×7×5×6×5205×6=103×9=406×6=501×5=704×9=205103406501704×6×9×6×5×9805×7=200×5=908×9=804×2=800×2=805200908804800×7×5×9×2×2203×6=909×5=103×2=409×9=202×7=203909103409202×6×5×2×9×7106×3=408×9=801×7=300×8=402×9=106408801300402×3×9×7×8×9902×8=402×5=708×3=806×9=803×8=902402708806803×8×5×3×9×8404×3=601×6=903×3=100×2=705×5=404601903100705×3×6×3×2×5105×5=505×4=402×7=703×3=600×8=105505402703600×5×4×7×3×8804×4=904×3=702×3=108×3=508×4=804904702108508×4×3×3×3×4508×5=400×7=300×2=703×8=209×2=508400300703209×5×7×2×8×2303×8=904×2=100×5=104×3=508×9=303904100104508×8×2×5×3×9401×9=105×7=801×4=400×3=801×2=401105801400801×9×7×4×3×2904×6=307×3=702×6=500×9=109×5=904307702500109×6×3×6×9×5201×7=809×8=109×5=408×6=805×7=201809109408805×7×8×5×6×7703×7=406×7=800×3=104×3=900×7=703406800104900×7×7×3×3×7104×9=105×7=104×2=306×6=707×5=104105104306707×9×7×2×6×5508×5=304×2=904×4=203×9=704×3=508304904203704×5×2×4×9×3607×8=602×7=108×8=500×7=904×5=607602108500904×8×7×8×7×5600×8=902×9=905×2=709×8=505×5=600902905709505×8×9×2×8×5706×9=801×6=408×7=403×5=700×6=706801408403700×9×6×7×5×6107×8=403×5=603×8=709×5=401×2=107403603709401×8×5×8×5×2807×8=202×3=506×8=508×4=206×4=807202506508206×8×3×8×4×4108×3=509×8=307×6=906×5=404×6=108509307906404×3×8×6×5×6706×3=106×2=702×8=608×7=901×6=706106702608901×3×2×8×7×6909×4=600×6=204×9=602×7=406×8=909600204602406×4×6×9×7×8900×2=401×8=704×3=805×2=909×9=900401704805909×2×8×3×2×9701×7=905×3=602×5=902×3=100×8=701905602902100×7×3×5×3×8204×2=809×2=607×2=501×8=706×3=204809607501706×2×2×2×8×3503×9=704×3=102×2=705×5=706×9=503704102705706×9×3×2×5×9101×6=704×8=906×2=901×9=906×5=101704906901906×6×8×2×9×5408×8=505×4=509×2=308×6=305×6=408505509308305×8×4×2×6×6104×7=809×6=901×7=501×2=505×6=104809901501505×7×6×7×2×6601×8=605×9=202×9=404×9=608×7=601605202404608×8×9×9×9×7505×3=802×6=607×8=303×4=204×7=505802607303204×3×6×8×4×7206×7=402×5=609×3=306×5=106×4=206402609306106×7×5×3×5×4708×3=109×8=201×9=400×6=201×3=708109201400201×3×8×9×6×3605×5=303×8=909×7=200×6=101×7=605303909200101×5×8×7×6×7503×4=401×7=206×7=709×2=200×8=503401206709200×4×7×7×2×8105×2=108×9=402×2=606×6=302×3=105108402606302×2×9×2×6×3904×7=202×2=708×6=206×3=207×3=904202708206207×7×2×6×3×3708×3=605×6=404×2=307×8=308×2=708605404307308×3×6×2×8×2709×5=302×8=506×4=900×6=205×9=709302506900205×5×8×4×6×9400×2=504×5=703×8=406×8=601×2=400504703406601×2×5×8×8×2807×6=400×6=506×2=106×5=809×8=807400506106809×6×6×2×5×8601×9=704×3=700×7=205×9=508×2=601704700205508×9×3×7×9×2205×6=408×9=308×6=803×5=801×6=205408308803801×6×9×6×5×6104×9=106×8=704×8=705×8=601×5=104106704705601×9×8×8×8×5600×2=802×3=408×2=608×9=102×9=600802408608102×2×3×2×9×9904×5=308×9=607×6=809×8=609×5=904308607809609×5×9×6×8×5109×2=807×7=607×6=205×4=101×3=109807607205101×2×7×6×4×3706×8=608×2=703×2=400×9=108×4=706608703400108×8×2×2×9×4108×9=401×8=807×2=703×7=905×9=108401807703905×9×8×2×7×9105×8=400×5=608×3=701×2=803×4=105400608701803×8×5×3×2×4600×5=405×7=200×9=505×7=902×5=600405200505902×5×7×9×7×5300×4=505×2=603×4=105×8=605×6=300505603105605×4×2×4×8×6602×7=108×6=303×2=606×9=106×7=602108303606106×7×6×2×9×7407×5=803×8=706×5=809×9=404×3=407803706809404×5×8×5×9×3302×4=706×7=201×8=907×4=902×5=302706201907902×4×7×8×4×5500×9=500×5=302×8=601×4=607×7=500500302601607×9×5×8×4×7600×7=308×9=504×5=309×5=308×6=600308504309308×7×9×5×5×6308×9=307×8=906×5=102×2=308×9=308307906102308×9×8×5×2×9301×5=109×7=101×4=700×8=900×2=301109101700900×5×7×4×8×2202×3=500×9=905×5=908×6=907×5=202500905908907×3×9×5×6×5709×5=201×9=600×2=409×7=507×2=709201600409507×5×9×2×7×2605×6=802×8=100×6=704×3=800×8=605802100704800×6×8×6×3×8300×7=603×2=304×3=101×4=407×2=300603304101407×7×2×3×4×2206×3=702×9=103×6=308×7=804×6=206702103308804×3×9×6×7×6900×9=903×7=700×2=107×7=402×6=900903700107402×9×7×2×7×6901×3=402×3=102×4=408×9=609×9=901402102408609×3×3×4×9×9402×2=904×8=407×2=904×2=602×7=402904407904602×2×8×2×2×7509×7=106×8=406×9=107×9=705×4=509106406107705×7×8×9×9×4707×5=804×6=103×2=100×8=108×7=707804103100108×5×6×2×8×7402×8=905×5=702×5=905×2=300×7=402905702905300×8×5×5×2×7909×7=402×5=205×7=904×7=705×2=909402205904705×7×5×7×7×2703×8=402×3=805×9=602×8=109×4=703402805602109×8×3×9×8×4806×5=909×7=308×3=906×8=702×4=806909308906702×5×7×3×8×4201×2=404×3=201×6=101×7=700×9=201404201101700×2×3×6×7×9409×4=208×9=206×3=508×8=909×9=409208206508909×4×9×3×8×9308×6=301×9=309×4=503×6=706×8=308301309503706×6×9×4×6×8207×5=606×9=504×5=106×6=202×8=207606504106202×5×9×5×6×8903×4=703×5=206×6=601×3=909×4=903703206601909×4×5×6×3×4609×8=809×5=203×8=105×6=502×5=609809203105502×8×5×8×6×5702×6=809×9=500×4=703×6=605×8=702809500703605×6×9×4×6×8805×2=109×3=204×6=803×6=900×4=805109204803900×2×3×6×6×4908×8=509×4=905×8=103×8=505×6=908509905103505×8×4×8×8×6602×5=404×8=902×3=701×3=707×2=602404902701707×5×8×3×3×2303×2=104×4=103×6=303×2=705×8=303104103303705×2×4×6×2×8808×8=500×5=606×8=105×7=507×9=808500606105507×8×5×8×7×9301×7=201×9=908×8=707×3=201×9=301201908707201×7×9×8×3×9100×8=801×8=709×5=709×7=208×9=100801709709208×8×8×5×7×9703×2=107×5=504×6=206×6=904×3=703107504206904×2×5×6×6×3306×2=704×9=203×5=708×4=506×5=306704203708506×2×9×5×4×5307×9=100×4=100×5=700×3=809×2=307100100700809×9×4×5×3×2500×9=205×4=607×9=909×7=408×2=500205607909408×9×4×9×7×2902×4=302×5=704×4=507×8=902×3=902302704507902×4×5×4×8×3307×9=108×2=306×8=207×5=304×3=307108306207304×9×2×8×5×3201×7=309×9=400×9=402×6=700×4=201309400402700×7×9×9×6×4800×2=801×4=502×2=409×6=404×2=800801502409404×2×4×2×6×2706×4=801×2=601×3=805×4=102×5=706801601805102×4×2×3×4×5306×7=309×5=601×3=305×7=704×4=306309601305704×7×5×3×7×4304×4=200×5=606×9=503×5=709×2=304200606503709×4×5×9×5×2308×7=105×2=603×4=105×2=702×2=308105603105702×7×2×4×2×2905×7=600×2=708×5=107×9=204×4=905600708107204×7×2×5×9×4201×8=302×9=703×4=602×2=402×7=201302703602402×8×9×4×2×7805×3=800×7=905×5=404×6=409×8=805800905404409×3×7×5×6×8703×5=104×6=908×2=308×9=400×4=703104908308400×5×6×2×9×4402×2=902×5=205×3=203×7=201×4=402902205203201×2×5×3×7×4501×8=802×4=902×3=200×9=404×2=501802902200404×8×4×3×9×2答案21215608300618182421421448423264816540614356549723236181212203054566440724956565640072641616152736241612436608484010354000804402497249351406724536362124181818721524643291824098084165454610424214421224494224486309180228129213012600909282420048242816325624321200400436633680845355672272149354323020401015216122028404550520081821401535251803808282140048563030143514351416204241621274128002409610151824549093520420024042114140440402040355630549813000610208122035561863140745272824424260030001206402427724256145610305418603609304572728201224150561235144361881121556143624214303520128004832181263727245122449566314203548182000123092724362505633656351000817216081600121845452063681141431836725607240036187216201021247254642412123606270920035255252020281421094800321627122106324203225402800600562441824241808500312457236097353204120016025424921421245005451407647254524485635492128422400312630093673520818363535254060836161827211248564214864350045204800811818105672252563544806285620154200856201548243545802645660640482032824324407218424530242421182125616425654063636360018364214324818003208211216108181490727153010270680040816181214400821184527211220435256354606563218128109453032642020101818481830728485463071002303048085445181836364256151548124856121214281442201018271530424212487218092400603302524246363120070720122807144214181600210972804363690663284044248618621212436308082456616354524162024540018458002520562432481202484224001012530647254092112490018451016123036721848401548069368485632564030051200240681654729184520277236426472304521856493642820303564812161406360043297232081614492181458402000182414023212

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