
0.45×5.6×0点五的简便方法
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简便方法如下:
0.45×5.6×0.5
=0.45×(5+0.6)×0.5
=0.45×(5×0.5+0.6×0.5)
=0.45x(2.5+0.3)
=(0.5-0.05)×2.8
=1.4-0.14
=1.26
0.45×5.6×0.5
=0.45×(5+0.6)×0.5
=0.45×(5×0.5+0.6×0.5)
=0.45x(2.5+0.3)
=(0.5-0.05)×2.8
=1.4-0.14
=1.26
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