0.888×9.2+0.222×3.2简便计算

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0.888×9.2+0.222×3.2简便计算
0.888×9.2+0.222×3.2简便计算

0.888×9.2+0.222×3.2简便计算
0.888×9.2+0.222×3.2
=0.888×9.2+0.222×4×0.8
=0.888×9.2+0.888x0.8
=0.888×(9.2+0.8)
=0.888x10
=8.88

0.888×9.2+0.222×3.2
=0.888×9.2+0.222×4×0.8
=0.888×9.2+0.888×0.8
=0.888×(9.2+0.8)
=0.888×10
=8.88

把9.2拆下来

=0.888*9.2+0.222*0.8*4=0.888*9.2+0.888*0.8=0.888(9.2+0.8)

4×0.222×9.2+0.222×3.2=0.222×(36.8+3.2)=0.222×40=8.88