下面各题怎样算简便就怎样算．
3.28×4.6+6.72×4.6 0.25×1.25×0.4
9.73×2.8﹣4.73×2.8． 12.5×4+3.12÷1.2
25.2﹣（7.8﹣2.6）×1.3 14.08÷[0.8×（7.93﹣2.43）]．
下面各题怎样算简便就怎样算．
3.28×4.6+6.72×4.6 0.25×1.25×0.4
9.73×2.8﹣4.73×2.8． 12.5×4+3.12÷1.2
25.2﹣（7.8﹣2.6）×1.3 14.08÷[0.8×（7.93﹣2.43）]．
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