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第第頁蘇教版三年級上冊數(shù)學(xué)乘法估算練習(xí)400題及答案估計下列各式的值593×8≈701×4≈497×7≈208×8≈51×2≈82×7≈392×8≈94×2≈802×5≈306×4≈77×4≈697×6≈794×3≈46×5≈591×6≈803×2≈904×3≈193×5≈794×4≈49×4≈307×9≈89×6≈203×8≈696×5≈692×5≈496×9≈598×9≈197×3≈606×4≈801×6≈296×8≈47×2≈594×3≈395×3≈703×5≈76×4≈904×7≈293×8≈92×3≈102×5≈599×2≈84×3≈901×4≈501×9≈57×7≈208×2≈46×7≈501×3≈692×8≈394×4≈395×8≈80×4≈607×2≈702×3≈691×5≈701×7≈201×2≈398×5≈291×3≈505×9≈696×6≈707×5≈195×5≈82×2≈46×2≈196×6≈509×4≈209×8≈702×6≈397×4≈192×3≈697×4≈706×9≈902×3≈596×4≈593×9≈507×6≈299×6≈894×4≈102×9≈49×8≈193×2≈88×9≈407×5≈697×8≈396×5≈204×3≈404×3≈291×7≈405×8≈94×4≈806×3≈303×8≈303×7≈507×7≈602×3≈206×2≈801×7≈57×2≈208×5≈592×7≈492×5≈299×5≈47×6≈398×8≈79×4≈191×5≈606×9≈501×7≈698×4≈104×5≈97×7≈77×6≈603×9≈596×8≈797×2≈694×8≈892×4≈62×7≈297×8≈794×7≈208×9≈409×2≈79×7≈905×3≈81×7≈802×6≈292×7≈402×8≈507×9≈103×9≈509×5≈302×8≈57×3≈795×6≈701×6≈303×5≈606×3≈98×9≈68×9≈795×8≈298×4≈508×3≈199×3≈492×9≈192×8≈504×7≈60×7≈295×3≈303×2≈705×2≈71×2≈794×9≈209×5≈83×4≈603×6≈595×8≈507×3≈93×5≈593×3≈509×3≈304×8≈408×7≈92×2≈607×5≈77×2≈792×6≈206×3≈409×8≈206×6≈701×8≈293×3≈302×4≈99×9≈97×8≈907×2≈798×3≈203×7≈703×4≈804×2≈82×8≈48×5≈66×8≈506×2≈605×8≈798×8≈89×7≈893×6≈72×6≈897×5≈499×9≈84×8≈897×7≈403×2≈61×2≈74×9≈74×7≈903×4≈595×5≈893×4≈比較大小，將>、<、＝填入?內(nèi)。202×5?1000415×9?3600402×4?1600306×6?1800595×9?5400203×5?100099×8?80098×5?500317×5?1500382×9?3600817×7?5600199×3?600508×3?1500308×3?900811×2?1600604×2?120064×2?120407×5?2000183×4?80049×6?300891×4?360054×4?200803×7?5600500×9?4500392×9?3600214×5?1000900×6?5400716×2?1400100×7?700308×5?1500218×5?100069×7?490697×5?350048×9?45076×3?240384×7?2800412×8?3200911×9?8100918×9?8100384×6?2400285×4?1200310×2?600913×6?5400902×2?1800807×3?2400817×3?240093×4?360888×4?360086×9?810887×4?3600905×4?3600699×2?1400681×9?6300584×5?3000401×6?2400199×2?400702×7?4900901×3?2700685×9?6300917×3?2700705×2?1400319×5?1500809×9?7200284×2?60074×8?56062×2?120181×7?1400188×3?600816×3?2400688×9?6300886×5?4500205×4?800510×9?4500785×6?4800519×7?350060×6?360309×9?2700790×8?6400401×9?3600908×7?6300210×9?1800581×4?2400285×9?2700298×8?2400483×2?1000782×9?7200418×8?3200504×9?450080×6?480794×8?6400302×3?900802×6?4800904×4?3600282×2?600494×6?3000703×7?4900398×6?2400514×9?4500381×3?1200606×2?1200104×5?500103×9?900898×5?4500884×5?4500786×8?640097×6?600581×8?4800494×4?2000489×7?3500803×3?2400595×3?1800410×2?800691×2?1400492×3?1500487×8?4000883×9?810059×8?480606×9?5400818×2?1600615×4?2400919×4?3600390×5?2000693×7?4900286×4?120051×2?100717×6?4200295×5?150071×6?420514×4?2000799×5?4000204×4?800886×8?7200390×6?2400309×4?1200718×2?1400783×6?480049×9?450614×3?1800718×5?3500412×2?800198×2?40072×7?490206×3?600913×8?7200611×9?5400381×2?800816×5?4000412×4?1600890×7?6300499×4?2000281×7?2100611×5?3000190×4?80090×8?720796×4?3200691×5?3500603×5?300084×6?48057×3?180400×2?800693×8?5600591×9?540094×4?360391×6?2400405×6?2400214×3?600482×4?2000895×9?8100192×6?1200399×8?3200802×9?7200583×5?3000514×7?3500185×4?800901×7?6300705×7?4900209×2?400310×9?2700802×7?5600515×4?200056×7?420189×2?40091×2?180682×9?6300417×2?800902×5?4500711×9?630079×6?480896×9?8100813×3?2400514×8?4000288×4?1200193×8?1600612×6?3600383×8?3200810×9?7200782×8?6400584×3?1800813×8?6400318×5?1500

蘇教版三年級上冊數(shù)學(xué)乘法估算練習(xí)400題答案48002800350016001005603200180400012003204200240025036001600270010003200200270054016003500350045005400600240048002400100180012003500320630024002705001200240360045004204003501500560016003200320120021003500490040020009004500420035001000160100120020001600420016006002800630027002400540030001800360090040040081020005600200060012002100320036024002400210035001800400560012010004200250015003003200320100054003500280050070048054004800160056003600420240056001800800560270056048002100320045009002500240018048004200150018009006306400120015006004500160035004209006001400140720010003203600480015004501800150024002800180300016048006003200120056009001200900800180024001400280016006402505601000480

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