0.79×0.18+0.79×36+0.79×0.44怎么巧算?

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0.79×0.18+0.79×36+0.79×0.44怎么巧算?
0.79×0.18+0.79×36+0.79×0.44怎么巧算?

0.79×0.18+0.79×36+0.79×0.44怎么巧算?
0.79×0.18+0.79×36+0.79×0.44
=0.79×(0.18+36+0.44)
=0.79×(36+0.62)
=28.9298

0.79X(0.18+36+0.44)=0.79X36.62
好像口算不了!

0.79×(0.18+36+0.44)