0.26×4.7+7.4×0.47怎样简算?

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0.26×4.7+7.4×0.47怎样简算?

0.26×4.7+7.4×0.47
=0.26x10x0.47+7.4x0.47
=(2.6+7.4)x0.47
=10x0.47
=4.7

0.26*0.47*10+7.4*0.47=(2.6+7.4)*0.47=4.7

=0.26*4.7+0.74*4.7
=4.7*(0.26+0.74)
=4.7