這是什么題?
難道是(45-4.5)/4.5=45/4.5 -4.5/4.5=10-1=9 ?
40.5/4.5如何簡算?
40.5/4.5如何簡算?
數(shù)學人氣:306 ℃時間:2020-04-30 07:37:19
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