
0.25X48用4种方法简便怎么做
展开全部
方法一.0.25X48=(1/4)X48=12.
方法二.0.25X48=0.25X4X12
=1X12
=12.
方法三.0.25X48=0.5X0.5X48
=0.5X24
=12.
方法四.0.25X48=(0.5X6)X0.5X8)
=3X4
=12.
方法二.0.25X48=0.25X4X12
=1X12
=12.
方法三.0.25X48=0.5X0.5X48
=0.5X24
=12.
方法四.0.25X48=(0.5X6)X0.5X8)
=3X4
=12.
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