人教版三年級上冊數(shù)學(xué)乘法估算練習(xí)200題及答案

第第頁人教版三年級上冊數(shù)學(xué)乘法估算練習(xí)200題及答案估計下列各式的值493×3≈54×7≈296×4≈604×9≈62×7≈792×3≈704×7≈609×8≈81×6≈693×6≈498×2≈201×8≈495×3≈607×4≈497×6≈291×6≈87×2≈407×3≈901×6≈594×9≈77×6≈805×4≈209×3≈104×7≈393×3≈604×5≈191×3≈201×9≈608×8≈64×5≈702×7≈801×7≈86×7≈297×9≈71×8≈702×2≈404×6≈909×6≈606×3≈71×7≈701×2≈797×7≈64×3≈403×7≈98×5≈302×8≈393×7≈493×2≈54×9≈79×3≈609×7≈52×7≈402×6≈704×8≈397×9≈302×9≈68×5≈793×8≈196×2≈66×3≈705×5≈196×8≈97×3≈701×3≈47×7≈298×6≈596×7≈307×6≈405×8≈693×2≈899×2≈604×4≈609×5≈806×8≈509×5≈99×8≈78×3≈54×6≈905×7≈74×2≈797×2≈596×3≈605×4≈99×7≈808×6≈298×3≈93×6≈592×4≈52×5≈77×5≈206×3≈98×3≈793×5≈79×7≈609×9≈894×8≈48×4≈505×5≈909×5≈807×7≈比較大小，將>、<、＝填入?內(nèi)。300×2?600708×3?2100905×8?7200807×5?4000688×5?350092×2?180913×6?5400393×8?3200891×6?5400795×5?4000887×4?3600406×5?2000284×2?600516×5?2500101×5?500318×8?2400408×8?3200309×4?1200296×5?150069×8?560700×8?5600605×8?480059×6?36048×4?200782×6?4800603×2?120054×7?35058×3?180809×5?4000695×5?3500412×2?800212×6?1200897×8?7200488×2?1000489×2?1000202×4?800781×8?640058×6?360602×7?4200505×6?3000396×8?320067×8?56051×6?300898×4?3600710×3?2100416×4?1600294×5?1500592×5?3000407×7?2800715×3?2100186×5?1000189×2?40092×5?450219×8?160089×4?36069×7?490204×3?600412×4?160098×7?700695×4?280099×4?400694×2?1400598×8?4800409×6?2400899×3?2700297×2?600392×3?1200602×6?3600906×8?7200703×7?490094×9?810910×7?6300809×3?2400890×3?270072×4?280519×8?4000415×6?2400916×6?5400588×8?4800881×2?1800319×3?900699×5?3500886×7?6300912×4?3600908×4?3600317×2?600385×9?3600508×4?2000386×4?160057×3?180893×2?1800597×9?540062×7?420587×6?3600592×9?5400614×9?5400288×9?2700896×9?810091×2?180791×4?3200

人教版三年級上冊數(shù)學(xué)乘法估算練習(xí)200題答案1500350120054004202400490048004804200100016001500240030001800180120054005400480320060070012003000600180048003004900560063027005601400240054001800490140056001802800500240028001000450240420035024005600360027003506400400210350016003002100350180042001800320014001800240030006400250080024030063001401600180024007004800900540240025040060030040