0.79 ×0.46+7.9 ×0.24+11.4×0.079 怎样算简便

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0.79 ×0.46+7.9 ×0.24+11.4×0.079 怎样算简便
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0.79 ×0.46+7.9 ×0.24+11.4×0.079 怎样算简便
0.79 ×0.46+7.9 ×0.24+11.4×0.079 怎样算简便

0.79 ×0.46+7.9 ×0.24+11.4×0.079 怎样算简便
0.79×0.46+7.9×0.24+11.4×0.079
=0.79×0.46+0.79×2.4+1.14×0.79
=0.79×(0.46+2.4+1.14)
=0.79×4
=3.16

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0.79×0.46+0.79×10×0.24+0.79/10×11.4=0.79×(0.46+2.4+1.14)=0.79×4=3.16