3.12+3.12*9.9
=3.12+3.12*（10-0.1）
=3.12+3.12*10-3.12*0.1
=3.12+31.2-0.312
=34.32-0.312
=34.008
3.12+3.12×9.9簡(jiǎn)便計(jì)算怎么做 緊急 答對(duì)了我再給賞20
3.12+3.12×9.9簡(jiǎn)便計(jì)算怎么做 緊急 答對(duì)了我再給賞20
數(shù)學(xué)人氣：786 ℃時(shí)間：2020-05-23 01:58:35
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