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发布时间:2023-11-02 03:17:52   来源:文档文库   
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三年级估算练习(一)1386+42726253693796+10844052285192×56903×3299×6793×850038761×9198×561×9192×558×8207÷594027657248975862558×8903×358×8703×797×959÷2647451305×8193×697×9299×687×9305×7409÷7123×657982178243325186503279793×7103×7999×467×92481+25443884898×4475368524376305×7903×3103×6993÷11800÷723475968789428399805228798×4269×661×9476÷8768÷3
三年级估算练习(二)199031469×5171÷841×6529×5541×24219÷745×2161×21909÷302534÷678÷442×1938×62494÷751.3802÷20312÷356÷5501÷53287÷7178÷629×3253×27401÷89+10.656×679×687÷8369÷364408÷232×28358÷6609÷6357÷69.9+0.591÷3099÷3402÷496÷95217÷789×21323÷4247÷6169×48.6+68.9509÷5701÷7607÷6201÷56306÷6408÷8412÷759×25364÷999.78.6219÷786×38897÷8709÷7

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